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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-26 04:16:39 +00:00
ALSA: sb: Allocate resources with device-managed APIs
This patch converts the resource management in ISA sb drivers with devres as a clean up. Each manual resource management is converted with the corresponding devres helper, and the card object release is managed now via card->private_free instead of a lowlevel snd_device. This should give no user-visible functional changes. Link: https://lore.kernel.org/r/20210715075941.23332-55-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
ea2bfa2961
commit
5eab6cb034
6 changed files with 52 additions and 192 deletions
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@ -56,9 +56,6 @@ struct snd_emu8000 {
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unsigned long port1; /* Port usually base+0 */
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unsigned long port2; /* Port usually at base+0x400 */
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unsigned long port3; /* Port usually at base+0x800 */
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struct resource *res_port1;
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struct resource *res_port2;
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struct resource *res_port3;
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unsigned short last_reg;/* Last register command */
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spinlock_t reg_lock;
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@ -1048,27 +1048,6 @@ snd_emu8000_create_mixer(struct snd_card *card, struct snd_emu8000 *emu)
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return err;
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}
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/*
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* free resources
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*/
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static int snd_emu8000_free(struct snd_emu8000 *hw)
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{
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release_and_free_resource(hw->res_port1);
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release_and_free_resource(hw->res_port2);
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release_and_free_resource(hw->res_port3);
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kfree(hw);
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return 0;
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}
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/*
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*/
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static int snd_emu8000_dev_free(struct snd_device *device)
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{
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struct snd_emu8000 *hw = device->device_data;
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return snd_emu8000_free(hw);
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}
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/*
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* initialize and register emu8000 synth device.
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*/
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@ -1079,9 +1058,6 @@ snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
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struct snd_seq_device *awe;
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struct snd_emu8000 *hw;
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int err;
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static const struct snd_device_ops ops = {
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.dev_free = snd_emu8000_dev_free,
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};
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if (awe_ret)
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*awe_ret = NULL;
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@ -1089,7 +1065,7 @@ snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
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if (seq_ports <= 0)
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return 0;
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hw = kzalloc(sizeof(*hw), GFP_KERNEL);
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hw = devm_kzalloc(card->dev, sizeof(*hw), GFP_KERNEL);
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if (hw == NULL)
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return -ENOMEM;
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spin_lock_init(&hw->reg_lock);
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@ -1097,12 +1073,10 @@ snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
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hw->port1 = port;
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hw->port2 = port + 0x400;
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hw->port3 = port + 0x800;
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hw->res_port1 = request_region(hw->port1, 4, "Emu8000-1");
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hw->res_port2 = request_region(hw->port2, 4, "Emu8000-2");
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hw->res_port3 = request_region(hw->port3, 4, "Emu8000-3");
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if (!hw->res_port1 || !hw->res_port2 || !hw->res_port3) {
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if (!devm_request_region(card->dev, hw->port1, 4, "Emu8000-1") ||
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!devm_request_region(card->dev, hw->port2, 4, "Emu8000-2") ||
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!devm_request_region(card->dev, hw->port3, 4, "Emu8000-3")) {
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snd_printk(KERN_ERR "sbawe: can't grab ports 0x%lx, 0x%lx, 0x%lx\n", hw->port1, hw->port2, hw->port3);
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snd_emu8000_free(hw);
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return -EBUSY;
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}
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hw->mem_size = 0;
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@ -1115,23 +1089,13 @@ snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
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hw->fm_chorus_depth = 0;
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hw->fm_reverb_depth = 0;
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if (snd_emu8000_detect(hw) < 0) {
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snd_emu8000_free(hw);
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if (snd_emu8000_detect(hw) < 0)
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return -ENODEV;
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}
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snd_emu8000_init_hw(hw);
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err = snd_emu8000_create_mixer(card, hw);
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if (err < 0) {
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snd_emu8000_free(hw);
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if (err < 0)
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return err;
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}
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err = snd_device_new(card, SNDRV_DEV_CODEC, hw, &ops);
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if (err < 0) {
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snd_emu8000_free(hw);
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return err;
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}
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#if IS_ENABLED(CONFIG_SND_SEQUENCER)
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if (snd_seq_device_new(card, index, SNDRV_SEQ_DEV_ID_EMU8000,
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sizeof(struct snd_emu8000*), &awe) >= 0) {
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@ -226,8 +226,8 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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static const int possible_dmas16[] = {5, 7, -1};
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int err, xirq, xdma8, xdma16, xmpu_port, xmpu_irq;
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err = snd_card_new(devptr, index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_jazz16), &card);
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err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_jazz16), &card);
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if (err < 0)
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return err;
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@ -238,8 +238,7 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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xirq = snd_legacy_find_free_irq(possible_irqs);
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if (xirq < 0) {
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snd_printk(KERN_ERR "unable to find a free IRQ\n");
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err = -EBUSY;
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goto err_free;
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return -EBUSY;
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}
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}
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xdma8 = dma8[dev];
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@ -247,8 +246,7 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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xdma8 = snd_legacy_find_free_dma(possible_dmas8);
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if (xdma8 < 0) {
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snd_printk(KERN_ERR "unable to find a free DMA8\n");
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err = -EBUSY;
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goto err_free;
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return -EBUSY;
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}
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}
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xdma16 = dma16[dev];
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@ -256,8 +254,7 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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xdma16 = snd_legacy_find_free_dma(possible_dmas16);
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if (xdma16 < 0) {
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snd_printk(KERN_ERR "unable to find a free DMA16\n");
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err = -EBUSY;
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goto err_free;
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return -EBUSY;
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}
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}
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@ -267,7 +264,7 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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err = jazz16_detect_board(port[dev], xmpu_port);
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if (err < 0) {
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printk(KERN_ERR "Media Vision Jazz16 board not detected\n");
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goto err_free;
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return err;
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}
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err = snd_sbdsp_create(card, port[dev], irq[dev],
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jazz16_interrupt,
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@ -275,7 +272,7 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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SB_HW_JAZZ16,
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&chip);
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if (err < 0)
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goto err_free;
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return err;
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xmpu_irq = mpu_irq[dev];
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if (xmpu_irq == SNDRV_AUTO_IRQ || mpu_port[dev] == SNDRV_AUTO_PORT)
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@ -283,7 +280,7 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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err = jazz16_configure_board(chip, xmpu_irq);
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if (err < 0) {
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printk(KERN_ERR "Media Vision Jazz16 configuration failed\n");
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goto err_free;
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return err;
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}
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jazz16->chip = chip;
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@ -296,10 +293,10 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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err = snd_sb8dsp_pcm(chip, 0);
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if (err < 0)
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goto err_free;
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return err;
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err = snd_sbmixer_new(chip);
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if (err < 0)
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goto err_free;
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return err;
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err = snd_opl3_create(card, chip->port, chip->port + 2,
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OPL3_HW_AUTO, 1, &opl3);
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@ -309,7 +306,7 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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else {
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err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
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if (err < 0)
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goto err_free;
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return err;
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}
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if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
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if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
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@ -326,21 +323,10 @@ static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
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err = snd_card_register(card);
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if (err < 0)
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goto err_free;
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return err;
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dev_set_drvdata(devptr, card);
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return 0;
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err_free:
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snd_card_free(card);
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return err;
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}
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static void snd_jazz16_remove(struct device *devptr, unsigned int dev)
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{
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struct snd_card *card = dev_get_drvdata(devptr);
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snd_card_free(card);
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}
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#ifdef CONFIG_PM
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@ -372,7 +358,6 @@ static int snd_jazz16_resume(struct device *pdev, unsigned int n)
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static struct isa_driver snd_jazz16_driver = {
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.match = snd_jazz16_match,
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.probe = snd_jazz16_probe,
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.remove = snd_jazz16_remove,
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#ifdef CONFIG_PM
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.suspend = snd_jazz16_suspend,
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.resume = snd_jazz16_resume,
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@ -285,15 +285,6 @@ static int snd_card_sb16_pnp(int dev, struct snd_card_sb16 *acard,
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#endif /* CONFIG_PNP */
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static void snd_sb16_free(struct snd_card *card)
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{
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struct snd_card_sb16 *acard = card->private_data;
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if (acard == NULL)
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return;
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release_and_free_resource(acard->fm_res);
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}
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#ifdef CONFIG_PNP
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#define is_isapnp_selected(dev) isapnp[dev]
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#else
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@ -306,11 +297,10 @@ static int snd_sb16_card_new(struct device *devptr, int dev,
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struct snd_card *card;
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int err;
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err = snd_card_new(devptr, index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_sb16), &card);
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err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_sb16), &card);
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if (err < 0)
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return err;
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card->private_free = snd_sb16_free;
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*cardp = card;
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return 0;
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}
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@ -482,17 +472,16 @@ static int snd_sb16_isa_probe1(int dev, struct device *pdev)
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/* non-PnP FM port address is hardwired with base port address */
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fm_port[dev] = port[dev];
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/* block the 0x388 port to avoid PnP conflicts */
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acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
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acard->fm_res = devm_request_region(card->dev, 0x388, 4,
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"SoundBlaster FM");
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#ifdef SNDRV_SBAWE_EMU8000
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/* non-PnP AWE port address is hardwired with base port address */
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awe_port[dev] = port[dev] + 0x400;
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#endif
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err = snd_sb16_probe(card, dev);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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dev_set_drvdata(pdev, card);
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return 0;
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}
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@ -547,11 +536,6 @@ static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
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}
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}
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static void snd_sb16_isa_remove(struct device *pdev, unsigned int dev)
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{
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snd_card_free(dev_get_drvdata(pdev));
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}
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#ifdef CONFIG_PM
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static int snd_sb16_isa_suspend(struct device *dev, unsigned int n,
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pm_message_t state)
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@ -574,7 +558,6 @@ static int snd_sb16_isa_resume(struct device *dev, unsigned int n)
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static struct isa_driver snd_sb16_isa_driver = {
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.match = snd_sb16_isa_match,
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.probe = snd_sb16_isa_probe,
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.remove = snd_sb16_isa_remove,
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#ifdef CONFIG_PM
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.suspend = snd_sb16_isa_suspend,
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.resume = snd_sb16_isa_resume,
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@ -600,15 +583,11 @@ static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
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if (res < 0)
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return res;
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res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid);
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if (res < 0) {
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snd_card_free(card);
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if (res < 0)
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return res;
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}
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res = snd_sb16_probe(card, dev);
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if (res < 0) {
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snd_card_free(card);
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if (res < 0)
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return res;
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}
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pnp_set_card_drvdata(pcard, card);
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dev++;
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return 0;
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@ -617,12 +596,6 @@ static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
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return -ENODEV;
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}
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static void snd_sb16_pnp_remove(struct pnp_card_link *pcard)
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{
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snd_card_free(pnp_get_card_drvdata(pcard));
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pnp_set_card_drvdata(pcard, NULL);
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}
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#ifdef CONFIG_PM
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static int snd_sb16_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
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{
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@ -643,7 +616,6 @@ static struct pnp_card_driver sb16_pnpc_driver = {
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#endif
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.id_table = snd_sb16_pnpids,
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.probe = snd_sb16_pnp_detect,
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.remove = snd_sb16_pnp_remove,
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#ifdef CONFIG_PM
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.suspend = snd_sb16_pnp_suspend,
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.resume = snd_sb16_pnp_resume,
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@ -54,15 +54,6 @@ static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
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}
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}
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static void snd_sb8_free(struct snd_card *card)
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{
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struct snd_sb8 *acard = card->private_data;
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if (acard == NULL)
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return;
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release_and_free_resource(acard->fm_res);
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}
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|
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static int snd_sb8_match(struct device *pdev, unsigned int dev)
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{
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if (!enable[dev])
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@ -86,26 +77,26 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
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struct snd_opl3 *opl3;
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int err;
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err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_sb8), &card);
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err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_sb8), &card);
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if (err < 0)
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return err;
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acard = card->private_data;
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card->private_free = snd_sb8_free;
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|
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/*
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* Block the 0x388 port to avoid PnP conflicts.
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* No need to check this value after request_region,
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* as we never do anything with it.
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*/
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acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
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acard->fm_res = devm_request_region(card->dev, 0x388, 4,
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"SoundBlaster FM");
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|
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if (port[dev] != SNDRV_AUTO_PORT) {
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err = snd_sbdsp_create(card, port[dev], irq[dev],
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snd_sb8_interrupt, dma8[dev],
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-1, SB_HW_AUTO, &chip);
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if (err < 0)
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goto _err;
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return err;
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} else {
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/* auto-probe legacy ports */
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static const unsigned long possible_ports[] = {
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|
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@ -125,10 +116,8 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
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break;
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}
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}
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if (i >= ARRAY_SIZE(possible_ports)) {
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err = -EINVAL;
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goto _err;
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}
|
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if (i >= ARRAY_SIZE(possible_ports))
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return -EINVAL;
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}
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acard->chip = chip;
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|
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@ -139,17 +128,16 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
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else
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snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
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port[dev]);
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err = -ENODEV;
|
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goto _err;
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return -ENODEV;
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}
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|
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err = snd_sb8dsp_pcm(chip, 0);
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if (err < 0)
|
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goto _err;
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return err;
|
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|
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err = snd_sbmixer_new(chip);
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if (err < 0)
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goto _err;
|
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return err;
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|
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if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
|
||||
err = snd_opl3_create(card, chip->port + 8, 0,
|
||||
|
|
@ -167,12 +155,12 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
|
|||
if (err >= 0) {
|
||||
err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
|
||||
if (err < 0)
|
||||
goto _err;
|
||||
return err;
|
||||
}
|
||||
|
||||
err = snd_sb8dsp_midi(chip, 0);
|
||||
if (err < 0)
|
||||
goto _err;
|
||||
return err;
|
||||
|
||||
strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
|
||||
strcpy(card->shortname, chip->name);
|
||||
|
|
@ -183,19 +171,10 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
|
|||
|
||||
err = snd_card_register(card);
|
||||
if (err < 0)
|
||||
goto _err;
|
||||
return err;
|
||||
|
||||
dev_set_drvdata(pdev, card);
|
||||
return 0;
|
||||
|
||||
_err:
|
||||
snd_card_free(card);
|
||||
return err;
|
||||
}
|
||||
|
||||
static void snd_sb8_remove(struct device *pdev, unsigned int dev)
|
||||
{
|
||||
snd_card_free(dev_get_drvdata(pdev));
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
|
@ -229,7 +208,6 @@ static int snd_sb8_resume(struct device *dev, unsigned int n)
|
|||
static struct isa_driver snd_sb8_driver = {
|
||||
.match = snd_sb8_match,
|
||||
.probe = snd_sb8_probe,
|
||||
.remove = snd_sb8_remove,
|
||||
#ifdef CONFIG_PM
|
||||
.suspend = snd_sb8_suspend,
|
||||
.resume = snd_sb8_resume,
|
||||
|
|
|
|||
|
|
@ -168,31 +168,6 @@ static int snd_sbdsp_probe(struct snd_sb * chip)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int snd_sbdsp_free(struct snd_sb *chip)
|
||||
{
|
||||
release_and_free_resource(chip->res_port);
|
||||
if (chip->irq >= 0)
|
||||
free_irq(chip->irq, (void *) chip);
|
||||
#ifdef CONFIG_ISA
|
||||
if (chip->dma8 >= 0) {
|
||||
disable_dma(chip->dma8);
|
||||
free_dma(chip->dma8);
|
||||
}
|
||||
if (chip->dma16 >= 0 && chip->dma16 != chip->dma8) {
|
||||
disable_dma(chip->dma16);
|
||||
free_dma(chip->dma16);
|
||||
}
|
||||
#endif
|
||||
kfree(chip);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int snd_sbdsp_dev_free(struct snd_device *device)
|
||||
{
|
||||
struct snd_sb *chip = device->device_data;
|
||||
return snd_sbdsp_free(chip);
|
||||
}
|
||||
|
||||
int snd_sbdsp_create(struct snd_card *card,
|
||||
unsigned long port,
|
||||
int irq,
|
||||
|
|
@ -204,15 +179,12 @@ int snd_sbdsp_create(struct snd_card *card,
|
|||
{
|
||||
struct snd_sb *chip;
|
||||
int err;
|
||||
static const struct snd_device_ops ops = {
|
||||
.dev_free = snd_sbdsp_dev_free,
|
||||
};
|
||||
|
||||
if (snd_BUG_ON(!r_chip))
|
||||
return -EINVAL;
|
||||
*r_chip = NULL;
|
||||
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
|
||||
if (chip == NULL)
|
||||
chip = devm_kzalloc(card->dev, sizeof(*chip), GFP_KERNEL);
|
||||
if (!chip)
|
||||
return -ENOMEM;
|
||||
spin_lock_init(&chip->reg_lock);
|
||||
spin_lock_init(&chip->open_lock);
|
||||
|
|
@ -223,13 +195,12 @@ int snd_sbdsp_create(struct snd_card *card,
|
|||
chip->dma16 = -1;
|
||||
chip->port = port;
|
||||
|
||||
if (request_irq(irq, irq_handler,
|
||||
(hardware == SB_HW_ALS4000 ||
|
||||
hardware == SB_HW_CS5530) ?
|
||||
IRQF_SHARED : 0,
|
||||
"SoundBlaster", (void *) chip)) {
|
||||
if (devm_request_irq(card->dev, irq, irq_handler,
|
||||
(hardware == SB_HW_ALS4000 ||
|
||||
hardware == SB_HW_CS5530) ?
|
||||
IRQF_SHARED : 0,
|
||||
"SoundBlaster", (void *) chip)) {
|
||||
snd_printk(KERN_ERR "sb: can't grab irq %d\n", irq);
|
||||
snd_sbdsp_free(chip);
|
||||
return -EBUSY;
|
||||
}
|
||||
chip->irq = irq;
|
||||
|
|
@ -238,17 +209,17 @@ int snd_sbdsp_create(struct snd_card *card,
|
|||
if (hardware == SB_HW_ALS4000)
|
||||
goto __skip_allocation;
|
||||
|
||||
chip->res_port = request_region(port, 16, "SoundBlaster");
|
||||
chip->res_port = devm_request_region(card->dev, port, 16,
|
||||
"SoundBlaster");
|
||||
if (!chip->res_port) {
|
||||
snd_printk(KERN_ERR "sb: can't grab port 0x%lx\n", port);
|
||||
snd_sbdsp_free(chip);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_ISA
|
||||
if (dma8 >= 0 && request_dma(dma8, "SoundBlaster - 8bit")) {
|
||||
if (dma8 >= 0 && snd_devm_request_dma(card->dev, dma8,
|
||||
"SoundBlaster - 8bit")) {
|
||||
snd_printk(KERN_ERR "sb: can't grab DMA8 %d\n", dma8);
|
||||
snd_sbdsp_free(chip);
|
||||
return -EBUSY;
|
||||
}
|
||||
chip->dma8 = dma8;
|
||||
|
|
@ -256,9 +227,9 @@ int snd_sbdsp_create(struct snd_card *card,
|
|||
if (hardware != SB_HW_ALS100 && (dma16 < 5 || dma16 > 7)) {
|
||||
/* no duplex */
|
||||
dma16 = -1;
|
||||
} else if (request_dma(dma16, "SoundBlaster - 16bit")) {
|
||||
} else if (snd_devm_request_dma(card->dev, dma16,
|
||||
"SoundBlaster - 16bit")) {
|
||||
snd_printk(KERN_ERR "sb: can't grab DMA16 %d\n", dma16);
|
||||
snd_sbdsp_free(chip);
|
||||
return -EBUSY;
|
||||
}
|
||||
}
|
||||
|
|
@ -269,15 +240,8 @@ int snd_sbdsp_create(struct snd_card *card,
|
|||
chip->card = card;
|
||||
chip->hardware = hardware;
|
||||
err = snd_sbdsp_probe(chip);
|
||||
if (err < 0) {
|
||||
snd_sbdsp_free(chip);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
|
||||
if (err < 0) {
|
||||
snd_sbdsp_free(chip);
|
||||
return err;
|
||||
}
|
||||
*r_chip = chip;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue