Commit e381a14c authored by Jaroslav Kysela's avatar Jaroslav Kysela Committed by Takashi Iwai
Browse files

ALSA: control_led - fix initialization in the mode show callback 



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: default avatarJaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20210614071710.1786866-1-perex@perex.cz


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 12c11ba5

sound/core/control_led.c

+1 −1
Original line number Diff line number Diff line
@@ -397,7 +397,7 @@ static ssize_t mode_show(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;