[PATCH 19/39] ALSA: korg1212: Fix the missing snd_card_free() call at probe error

Takashi Iwai tiwai at suse.de
Tue Apr 12 12:26:16 CEST 2022


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: b5cde369b618 ("ALSA: korg1212: Allocate resources with device-managed APIs")
Cc: <stable at vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/korg1212/korg1212.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 5c9e240ff6a9..33b4f95d65b3 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -2355,7 +2355,7 @@ snd_korg1212_probe(struct pci_dev *pci,
 
 	err = snd_korg1212_create(card, pci);
 	if (err < 0)
-		return err;
+		goto error;
 
 	strcpy(card->driver, "korg1212");
 	strcpy(card->shortname, "korg1212");
@@ -2366,10 +2366,14 @@ snd_korg1212_probe(struct pci_dev *pci,
 
 	err = snd_card_register(card);
 	if (err < 0)
-		return err;
+		goto error;
 	pci_set_drvdata(pci, card);
 	dev++;
 	return 0;
+
+ error:
+	snd_card_free(card);
+	return err;
 }
 
 static struct pci_driver korg1212_driver = {
-- 
2.31.1



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