diff options
Diffstat (limited to 'sound/firewire/bebob/bebob_midi.c')
| -rw-r--r-- | sound/firewire/bebob/bebob_midi.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c index 3befa3eca6ef..e2d3cad39d28 100644 --- a/sound/firewire/bebob/bebob_midi.c +++ b/sound/firewire/bebob/bebob_midi.c @@ -15,15 +15,18 @@ static int midi_capture_open(struct snd_rawmidi_substream *substream) err = snd_bebob_stream_lock_try(bebob); if (err < 0) - goto end; + return err; mutex_lock(&bebob->mutex); - bebob->substreams_counter++; - err = snd_bebob_stream_start_duplex(bebob, 0); + err = snd_bebob_stream_reserve_duplex(bebob, 0); + if (err >= 0) { + ++bebob->substreams_counter; + err = snd_bebob_stream_start_duplex(bebob); + } mutex_unlock(&bebob->mutex); if (err < 0) snd_bebob_stream_lock_release(bebob); -end: + return err; } @@ -34,15 +37,18 @@ static int midi_playback_open(struct snd_rawmidi_substream *substream) err = snd_bebob_stream_lock_try(bebob); if (err < 0) - goto end; + return err; mutex_lock(&bebob->mutex); - bebob->substreams_counter++; - err = snd_bebob_stream_start_duplex(bebob, 0); + err = snd_bebob_stream_reserve_duplex(bebob, 0); + if (err >= 0) { + ++bebob->substreams_counter; + err = snd_bebob_stream_start_duplex(bebob); + } mutex_unlock(&bebob->mutex); if (err < 0) snd_bebob_stream_lock_release(bebob); -end: + return err; } |