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ALSA: control: Fix unannotated kfree() cleanup 

The recent conversion to the automatic kfree() forgot to mark a
variable with __free(kfree), leading to memory leaks.  Fix it.

Fixes: 1052d98822 ("ALSA: control: Use automatic cleanup of kfree()")
Reported-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Closes: https://lore.kernel.org/r/c1e2ef3c-164f-4840-9b1c-f7ca07ca422a@alu.unizg.hr
Message-ID: <20240320062722.31325-1-tiwai@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2024-03-20 07:27:20 +01:00
parent 33affa7fb4
commit 14d811467f
1 changed files with 2 additions and 2 deletions
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4
sound/core/control.c
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@ -1275,12 +1275,12 @@ static int snd_ctl_elem_read(struct snd_card *card,
static int snd_ctl_elem_read_user(struct snd_card *card,
struct snd_ctl_elem_value __user *_control)
{
struct snd_ctl_elem_value *control;
struct snd_ctl_elem_value *control __free(kfree) = NULL;
int result;
control = memdup_user(_control, sizeof(*control));
if (IS_ERR(control))
return PTR_ERR(control);
return PTR_ERR(no_free_ptr(control));
result = snd_ctl_elem_read(card, control);
if (result < 0)