diff options
Diffstat (limited to 'sound/usb/stream.c')
| -rw-r--r-- | sound/usb/stream.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/usb/stream.c b/sound/usb/stream.c index 3b23102230c0..98b2c28ae46b 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -69,9 +69,14 @@ static void snd_usb_audio_stream_free(struct snd_usb_stream *stream) static void snd_usb_audio_pcm_free(struct snd_pcm *pcm) { struct snd_usb_stream *stream = pcm->private_data; + struct snd_usb_audio *chip; + if (stream) { + mutex_lock(&stream->chip->dev_lock); + chip = stream->chip; stream->pcm = NULL; snd_usb_audio_stream_free(stream); + mutex_unlock(&chip->dev_lock); } } |