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| author | Jaroslav Kysela <perex@perex.cz> | 2021-06-14 10:17:10 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-06-14 10:50:34 +0300 |
| commit | e381a14c3e3a4e90e293d4eaa5a3ab8ae98b9973 (patch) | |
| tree | 45e543b95cc3a0b995ecb7bfe59c04930d0007ad | |
| parent | 12c11ba5be833391ec73d33de0360aacd9473569 (diff) | |
| download | linux-e381a14c3e3a4e90e293d4eaa5a3ab8ae98b9973.tar.xz | |
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: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20210614071710.1786866-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/core/control_led.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/core/control_led.c b/sound/core/control_led.c index 861f71f2fab5..764058cc345d 100644 --- a/sound/core/control_led.c +++ b/sound/core/control_led.c @@ -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; |