ALSA: aw2: 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() manually on the error
from the probe callback.

Fixes: 33631012cd06 ("ALSA: aw2: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-32-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index d56f126..29a4bcd 100644 (file)
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -275,7 +275,7 @@ static int snd_aw2_probe(struct pci_dev *pci,
        /* (3) Create main component */
        err = snd_aw2_create(card, pci);
        if (err < 0)
-               return err;
+               goto error;
 
        /* initialize mutex */
        mutex_init(&chip->mtx);
@@ -294,13 +294,17 @@ static int snd_aw2_probe(struct pci_dev *pci,
        /* (6) Register card instance */
        err = snd_card_register(card);
        if (err < 0)
-               return err;
+               goto error;
 
        /* (7) Set PCI driver data */
        pci_set_drvdata(pci, card);
 
        dev++;
        return 0;
+
+ error:
+       snd_card_free(card);
+       return err;
 }
 
 /* open callback */