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ALSA: sc6000: Fix the missing snd_card_free() call at probe error 

The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 111601ff76 ("ALSA: sc6000: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-04-12 12:25:59 +02:00
parent 10b1881a97
commit d724580711
1 changed files with 6 additions and 1 deletions
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7
sound/isa/sc6000.c
View File

@ -537,7 +537,7 @@ static void snd_sc6000_free(struct snd_card *card)
sc6000_setup_board(vport, 0);
}
static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
static int __snd_sc6000_probe(struct device *devptr, unsigned int dev)
{
static const int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
static const int possible_dmas[] = { 1, 3, 0, -1 };
@ -662,6 +662,11 @@ static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
return 0;
}
static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
{
return snd_card_free_on_error(devptr, __snd_sc6000_probe(devptr, dev));
}
static struct isa_driver snd_sc6000_driver = {
.match = snd_sc6000_match,
.probe = snd_sc6000_probe,