| Message ID | 20210614071710.1786866-1-perex@perex.cz (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | e381a14c3e3a4e90e293d4eaa5a3ab8ae98b9973 |
| Headers | show |
| Series | alsa: control_led - fix initialization in the mode show callback | expand |
On Mon, 14 Jun 2021 09:17:10 +0200, Jaroslav Kysela wrote: > > 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> Thanks, applied. Takashi
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;
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> --- sound/core/control_led.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)