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ALSA: maestro3: Fix the missing snd_card_free() call at probe error

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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: 5c0939253c ("ALSA: maestro3: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-21-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-04-12 12:26:17 +02:00
parent c01b723a56
commit ae86bf5c2a
1 changed files with 7 additions and 1 deletions
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8
sound/pci/maestro3.c
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@ -2637,7 +2637,7 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci,
/*
*/
static int
snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
__snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
@ -2702,6 +2702,12 @@ snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
return 0;
}
static int
snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
return snd_card_free_on_error(&pci->dev, __snd_m3_probe(pci, pci_id));
}
static struct pci_driver m3_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_m3_ids,