ALSA: au88x0: Fix the missing snd_card_free() call at probe error

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: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 342ef2a6655e3e48ac0d213fffb92b97f0a5c287..eb234153691bc8c7a68a0015ebb87c4a7217dfd3 100644 (file)
--- 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,