Re: [PATCH] ALSA: ice1712: Fix missing snd_card_free() at probe error

[Takashi Iwai <tiwai@suse.de>]

On Wed, 19 Aug 2026 10:49:59 +0200,
Haotian Zhang wrote:
> 
> snd_ice1712_probe() performs multiple initialization steps after
> snd_card_new(), but directly returns on failures from later steps
> without releasing the ALSA card, causing resource leaks when
> probing fails.
> 
> Route all initialization failures after snd_card_new() to a
> common error path and call snd_card_free() before returning
> the original error code.
> 
> Fixes: ca642da4b33d ("ALSA: ice1712: Allocate resources with device-managed APIs")
> Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>

Actually, this was rather a forgotten replacement of snd_card_new()
with snd_devm_card_new(), as implemented in a similar code ice1724.c.
But the error handling before the registration is still needed (it was
fixed later for ice1724.c, too), so it'll be something like below.


thanks,

Takashi

-- 8< --
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2519,8 +2519,8 @@ static int snd_ice1712_create(struct snd_card *card,
 
 static struct snd_ice1712_card_info no_matched;
 
-static int snd_ice1712_probe(struct pci_dev *pci,
-			     const struct pci_device_id *pci_id)
+static int __snd_ice1712_probe(struct pci_dev *pci,
+			       const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct snd_card *card;
@@ -2535,8 +2535,8 @@ static int snd_ice1712_probe(struct pci_dev *pci,
 		return -ENOENT;
 	}
 
-	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
-			   sizeof(*ice), &card);
+	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+				sizeof(*ice), &card);
 	if (err < 0)
 		return err;
 	ice = card->private_data;
@@ -2644,6 +2644,12 @@ static int snd_ice1712_probe(struct pci_dev *pci,
 	return 0;
 }
 
+static int snd_ice1712_probe(struct pci_dev *pci,
+			     const struct pci_device_id *pci_id)
+{
+	return snd_card_free_on_error(&pci->dev, __snd_ice1712_probe(pci, pci_id));
+}
+
 #ifdef CONFIG_PM_SLEEP
 static int snd_ice1712_suspend(struct device *dev)
 {