korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 08:14:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
commit ae86bf5c2a upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Takashi Iwai 2022-04-12 12:26:17 +02:00 committed by Greg Kroah-Hartman
parent 5fbb73cb12
commit 30b86477da
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sound/pci/maestro3.c
View File

@ -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,