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Diffstat (limited to 'sound/usb/line6/pcm.c')
-rw-r--r--sound/usb/line6/pcm.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c
index 73c87467d2e0..8461d6bf992f 100644
--- a/sound/usb/line6/pcm.c
+++ b/sound/usb/line6/pcm.c
@@ -45,15 +45,22 @@ static int snd_line6_impulse_volume_put(struct snd_kcontrol *kcontrol,
{
struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
int value = ucontrol->value.integer.value[0];
+ int err;
if (line6pcm->impulse_volume == value)
return 0;
line6pcm->impulse_volume = value;
- if (value > 0)
- line6_pcm_acquire(line6pcm, LINE6_STREAM_IMPULSE);
- else
+ if (value > 0) {
+ err = line6_pcm_acquire(line6pcm, LINE6_STREAM_IMPULSE);
+ if (err < 0) {
+ line6pcm->impulse_volume = 0;
+ line6_pcm_release(line6pcm, LINE6_STREAM_IMPULSE);
+ return err;
+ }
+ } else {
line6_pcm_release(line6pcm, LINE6_STREAM_IMPULSE);
+ }
return 1;
}