[07/39] ALSA: au88x0: Fix the missing snd_card_free() call at probe error

Commit Message

Takashi Iwai April 12, 2022, 10:26 a.m. UTC

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: e44b5b440609 ("ALSA: au88x0: Allocate resources with device-managed APIs")
Cc: <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>
---
 sound/pci/au88x0/au88x0.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Patch

diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 342ef2a6655e..eb234153691b 100644
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -193,7 +193,7 @@  snd_vortex_create(struct snd_card *card, struct pci_dev *pci)
 
 // constructor -- see "Constructor" sub-section
 static int
-snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+__snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct snd_card *card;
@@ -310,6 +310,12 @@  snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 	return 0;
 }
 
+static int
+snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+{
+	return snd_card_free_on_error(&pci->dev, __snd_vortex_probe(pci, pci_id));
+}
+
 // pci_driver definition
 static struct pci_driver vortex_driver = {
 	.name = KBUILD_MODNAME,