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ALSA: bt87x: 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: 9e80ed64a0 ("ALSA: bt87x: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-04-12 12:26:25 +02:00
parent 2236a3243f
commit f043815527
1 changed files with 8 additions and 2 deletions
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10
sound/pci/bt87x.c
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@ -805,8 +805,8 @@ static int snd_bt87x_detect_card(struct pci_dev *pci)
return SND_BT87X_BOARD_UNKNOWN;
}
static int snd_bt87x_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
static int __snd_bt87x_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
@ -889,6 +889,12 @@ static int snd_bt87x_probe(struct pci_dev *pci,
return 0;
}
static int snd_bt87x_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
return snd_card_free_on_error(&pci->dev, __snd_bt87x_probe(pci, pci_id));
}
/* default entries for all Bt87x cards - it's not exported */
/* driver_data is set to 0 to call detection */
static const struct pci_device_id snd_bt87x_default_ids[] = {