This is a note to let you know that I've just added the patch titled
ALSA: control_led - fix initialization in the mode show callback
to the 5.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-control_led-fix-initialization-in-the-mode-show.patch
and it can be found in the queue-5.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a6cb387a98be6dc35d3e4d01b394dec14fd2d77c
Author: Jaroslav Kysela <perex@xxxxxxxx>
Date: Mon Jun 14 09:17:10 2021 +0200
ALSA: control_led - fix initialization in the mode show callback
[ Upstream commit e381a14c3e3a4e90e293d4eaa5a3ab8ae98b9973 ]
The str variable should be always initialized before use even if
the switch covers all cases. This is a minimalistic fix: Assign NULL,
the sprintf() may print '(null)' if something is corrupted.
Signed-off-by: Jaroslav Kysela <perex@xxxxxxxx>
Link: https://lore.kernel.org/r/20210614071710.1786866-1-perex@xxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/core/control_led.c b/sound/core/control_led.c
index a90e31dbde61..ff7fd5e29551 100644
--- a/sound/core/control_led.c
+++ b/sound/core/control_led.c
@@ -397,7 +397,7 @@ static ssize_t show_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct snd_ctl_led *led = container_of(dev, struct snd_ctl_led, dev);
- const char *str;
+ const char *str = NULL;
switch (led->mode) {
case MODE_FOLLOW_MUTE: str = "follow-mute"; break;
