diff options
Diffstat (limited to 'sound/firewire/dice/dice-midi.c')
| -rw-r--r-- | sound/firewire/dice/dice-midi.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sound/firewire/dice/dice-midi.c b/sound/firewire/dice/dice-midi.c index ca7ae427e892..c9e19bddfc09 100644 --- a/sound/firewire/dice/dice-midi.c +++ b/sound/firewire/dice/dice-midi.c @@ -17,8 +17,13 @@ static int midi_open(struct snd_rawmidi_substream *substream) mutex_lock(&dice->mutex); - dice->substreams_counter++; - err = snd_dice_stream_start_duplex(dice, 0); + err = snd_dice_stream_reserve_duplex(dice, 0); + if (err >= 0) { + ++dice->substreams_counter; + err = snd_dice_stream_start_duplex(dice); + if (err < 0) + --dice->substreams_counter; + } mutex_unlock(&dice->mutex); @@ -34,7 +39,7 @@ static int midi_close(struct snd_rawmidi_substream *substream) mutex_lock(&dice->mutex); - dice->substreams_counter--; + --dice->substreams_counter; snd_dice_stream_stop_duplex(dice); mutex_unlock(&dice->mutex); |