ALSA: es1938: 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: 08e9d3ab4cc1 ("ALSA: es1938: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-15-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index 00b976f42a3dbdb5857b41b1aa2337fd0a02ab1e..e34ec6f89e7e00449790c9d3b5a0e52f985215d3 100644 (file)
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1716,8 +1716,8 @@ static int snd_es1938_mixer(struct es1938 *chip)
 }
        
 
-static int snd_es1938_probe(struct pci_dev *pci,
-                           const struct pci_device_id *pci_id)
+static int __snd_es1938_probe(struct pci_dev *pci,
+                             const struct pci_device_id *pci_id)
 {
        static int dev;
        struct snd_card *card;
@@ -1796,6 +1796,12 @@ static int snd_es1938_probe(struct pci_dev *pci,
        return 0;
 }
 
+static int snd_es1938_probe(struct pci_dev *pci,
+                           const struct pci_device_id *pci_id)
+{
+       return snd_card_free_on_error(&pci->dev, __snd_es1938_probe(pci, pci_id));
+}
+
 static struct pci_driver es1938_driver = {
        .name = KBUILD_MODNAME,
        .id_table = snd_es1938_ids,