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ALSA: rme32: Fix assignment in if condition

Browse source 
PCI RME32 driver code contains a few assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.

This patch is merely for coding-style fixes (except for a slight
refactoring about AutoSync rate check, only systematic conversions),
no functional changes.

Link: https://lore.kernel.org/r/20210608140540.17885-31-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2021-06-08 16:05:04 +02:00
parent 5cc16ba623
commit 1c9140b9ca
1 changed files with 48 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

76
sound/pci/rme32.c
View file

@ -668,18 +668,24 @@ snd_rme32_playback_hw_params(struct snd_pcm_substream *substream,
}
spin_lock_irq(&rme32->lock);
if ((rme32->rcreg & RME32_RCR_KMODE) &&
(rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
rate = 0;
if (rme32->rcreg & RME32_RCR_KMODE)
rate = snd_rme32_capture_getrate(rme32, &dummy);
if (rate > 0) {
/* AutoSync */
if ((int)params_rate(params) != rate) {
spin_unlock_irq(&rme32->lock);
return -EIO;
}
} else if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
spin_unlock_irq(&rme32->lock);
return err;
} else {
err = snd_rme32_playback_setrate(rme32, params_rate(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
}
if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
err = snd_rme32_setformat(rme32, params_format(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
@ -723,15 +729,18 @@ snd_rme32_capture_hw_params(struct snd_pcm_substream *substream,
rme32->wcreg |= RME32_WCR_AUTOSYNC;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
err = snd_rme32_setformat(rme32, params_format(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
err = snd_rme32_playback_setrate(rme32, params_rate(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
rate = snd_rme32_capture_getrate(rme32, &isadat);
if (rate > 0) {
if ((int)params_rate(params) != rate) {
spin_unlock_irq(&rme32->lock);
return -EIO;
@ -854,8 +863,10 @@ static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
runtime->hw.rate_max = 96000;
}
if ((rme32->rcreg & RME32_RCR_KMODE) &&
(rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
rate = 0;
if (rme32->rcreg & RME32_RCR_KMODE)
rate = snd_rme32_capture_getrate(rme32, &dummy);
if (rate > 0) {
/* AutoSync */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
@ -895,7 +906,8 @@ static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
runtime->hw.rate_max = 96000;
}
if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
rate = snd_rme32_capture_getrate(rme32, &isadat);
if (rate > 0) {
if (isadat) {
return -EIO;
}
@ -932,8 +944,10 @@ snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
runtime->hw = snd_rme32_adat_fd_info;
else
runtime->hw = snd_rme32_adat_info;
if ((rme32->rcreg & RME32_RCR_KMODE) &&
(rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
rate = 0;
if (rme32->rcreg & RME32_RCR_KMODE)
rate = snd_rme32_capture_getrate(rme32, &dummy);
if (rate > 0) {
/* AutoSync */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
@ -955,7 +969,8 @@ snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
runtime->hw = snd_rme32_adat_fd_info;
else
runtime->hw = snd_rme32_adat_info;
if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
rate = snd_rme32_capture_getrate(rme32, &isadat);
if (rate > 0) {
if (!isadat) {
return -EIO;
}
@ -1307,10 +1322,12 @@ static int snd_rme32_create(struct rme32 *rme32)
rme32->irq = -1;
spin_lock_init(&rme32->lock);
if ((err = pci_enable_device(pci)) < 0)
err = pci_enable_device(pci);
if (err < 0)
return err;
if ((err = pci_request_regions(pci, "RME32")) < 0)
err = pci_request_regions(pci, "RME32");
if (err < 0)
return err;
rme32->port = pci_resource_start(rme32->pci, 0);
@ -1334,9 +1351,9 @@ static int snd_rme32_create(struct rme32 *rme32)
pci_read_config_byte(pci, 8, &rme32->rev);
/* set up ALSA pcm device for S/PDIF */
if ((err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm)) < 0) {
err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm);
if (err < 0)
return err;
}
rme32->spdif_pcm->private_data = rme32;
rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm;
strcpy(rme32->spdif_pcm->name, "Digi32 IEC958");
@ -1363,11 +1380,10 @@ static int snd_rme32_create(struct rme32 *rme32)
rme32->adat_pcm = NULL;
}
else {
if ((err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1, 1, &rme32->adat_pcm)) < 0)
{
err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1, 1, &rme32->adat_pcm);
if (err < 0)
return err;
}
rme32->adat_pcm->private_data = rme32;
rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm;
strcpy(rme32->adat_pcm->name, "Digi32 ADAT");
@ -1410,9 +1426,9 @@ static int snd_rme32_create(struct rme32 *rme32)
/* init switch interface */
if ((err = snd_rme32_create_switches(rme32->card, rme32)) < 0) {
err = snd_rme32_create_switches(rme32->card, rme32);
if (err < 0)
return err;
}
/* init proc interface */
snd_rme32_proc_init(rme32);
@ -1855,7 +1871,9 @@ static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32
struct snd_kcontrol *kctl;
for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32))) < 0)
kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32);
err = snd_ctl_add(card, kctl);
if (err < 0)
return err;
if (idx == 1) /* IEC958 (S/PDIF) Stream */
rme32->spdif_ctl = kctl;
@ -1899,7 +1917,8 @@ snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
rme32->pci = pci;
if (fullduplex[dev])
rme32->fullduplex_mode = 1;
if ((err = snd_rme32_create(rme32)) < 0) {
err = snd_rme32_create(rme32);
if (err < 0) {
snd_card_free(card);
return err;
}
@ -1919,7 +1938,8 @@ snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
card->shortname, rme32->rev, rme32->port, rme32->irq);
if ((err = snd_card_register(card)) < 0) {
err = snd_card_register(card);
if (err < 0) {
snd_card_free(card);
return err;
}