diff options
Diffstat (limited to 'sound/firewire/bebob/bebob_midi.c')
| -rw-r--r-- | sound/firewire/bebob/bebob_midi.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c index 90d95be499b0..868eb0decbec 100644 --- a/sound/firewire/bebob/bebob_midi.c +++ b/sound/firewire/bebob/bebob_midi.c @@ -17,8 +17,10 @@ static int midi_capture_open(struct snd_rawmidi_substream *substream) if (err < 0) goto end; - atomic_inc(&bebob->substreams_counter); + mutex_lock(&bebob->mutex); + bebob->substreams_counter++; err = snd_bebob_stream_start_duplex(bebob, 0); + mutex_unlock(&bebob->mutex); if (err < 0) snd_bebob_stream_lock_release(bebob); end: @@ -34,8 +36,10 @@ static int midi_playback_open(struct snd_rawmidi_substream *substream) if (err < 0) goto end; - atomic_inc(&bebob->substreams_counter); + mutex_lock(&bebob->mutex); + bebob->substreams_counter++; err = snd_bebob_stream_start_duplex(bebob, 0); + mutex_unlock(&bebob->mutex); if (err < 0) snd_bebob_stream_lock_release(bebob); end: @@ -46,8 +50,10 @@ static int midi_capture_close(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; - atomic_dec(&bebob->substreams_counter); + mutex_lock(&bebob->mutex); + bebob->substreams_counter--; snd_bebob_stream_stop_duplex(bebob); + mutex_unlock(&bebob->mutex); snd_bebob_stream_lock_release(bebob); return 0; @@ -57,8 +63,10 @@ static int midi_playback_close(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; - atomic_dec(&bebob->substreams_counter); + mutex_lock(&bebob->mutex); + bebob->substreams_counter--; snd_bebob_stream_stop_duplex(bebob); + mutex_unlock(&bebob->mutex); snd_bebob_stream_lock_release(bebob); return 0; |