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ALSA: ice1712: Fix the card leak at probe error with the auto-cleanup

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snd_ice1712_probe() performs multiple initialization steps after
snd_card_new(), but directly returns on failures from later steps
without releasing the ALSA card, causing resource leaks when
probing fails.

Use snd_devm_card_new() together with scope-based cleanup
via __free(snd_card_unref), and clear the card pointer after
successful registration to keep it alive.

Fixes: ca642da4b3 ("ALSA: ice1712: Allocate resources with device-managed APIs")
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20260820014117.14044-1-vulab@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Haotian Zhang 2026-08-20 09:41:17 +08:00 committed by Takashi Iwai
parent 352cef030f
commit d736eba9c4
1 changed files with 4 additions and 3 deletions
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7
sound/pci/ice1712/ice1712.c
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@ -2523,7 +2523,7 @@ static int snd_ice1712_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct snd_card *card __free(snd_card_unref) = NULL;
struct snd_ice1712 *ice;
int pcm_dev = 0, err;
const struct snd_ice1712_card_info * const *tbl, *c;
@ -2535,8 +2535,8 @@ static int snd_ice1712_probe(struct pci_dev *pci,
return -ENOENT;
}
err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
sizeof(*ice), &card);
err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
sizeof(*ice), &card);
if (err < 0)
return err;
ice = card->private_data;
@ -2640,6 +2640,7 @@ static int snd_ice1712_probe(struct pci_dev *pci,
if (err < 0)
return err;
pci_set_drvdata(pci, card);
card = NULL; /* probe succeeded, don't release as error */
dev++;
return 0;
}