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ALSA: gus: add a check of the status of snd_ctl_add

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snd_ctl_add() could fail, so let's check its status and issue an error
message if it indeed fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Kangjie Lu 2018-12-25 19:40:51 -06:00 committed by Takashi Iwai
parent 4bccb403f2
commit 0f25e000cb
1 changed files with 11 additions and 2 deletions
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13
sound/isa/gus/gus_main.c
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@ -92,8 +92,17 @@ static const struct snd_kcontrol_new snd_gus_joystick_control = {
static void snd_gus_init_control(struct snd_gus_card *gus)
{
if (!gus->ace_flag)
snd_ctl_add(gus->card, snd_ctl_new1(&snd_gus_joystick_control, gus));
int ret;
if (!gus->ace_flag) {
ret =
snd_ctl_add(gus->card,
snd_ctl_new1(&snd_gus_joystick_control,
gus));
if (ret)
snd_printk(KERN_ERR "gus: snd_ctl_add failed: %d\n",
ret);
}
}
/*