diff options
Diffstat (limited to 'sound/firewire/tascam/tascam-pcm.c')
| -rw-r--r-- | sound/firewire/tascam/tascam-pcm.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/sound/firewire/tascam/tascam-pcm.c b/sound/firewire/tascam/tascam-pcm.c index 696b371e3c44..380d3db969a5 100644 --- a/sound/firewire/tascam/tascam-pcm.c +++ b/sound/firewire/tascam/tascam-pcm.c @@ -72,9 +72,13 @@ static int pcm_open(struct snd_pcm_substream *substream) unsigned int rate; int err; + err = snd_tscm_stream_lock_try(tscm); + if (err < 0) + goto end; + err = pcm_init_hw_params(tscm, substream); if (err < 0) - return err; + goto err_locked; err = snd_tscm_stream_get_clock(tscm, &clock); if (clock != SND_TSCM_CLOCK_INTERNAL || @@ -82,18 +86,25 @@ static int pcm_open(struct snd_pcm_substream *substream) amdtp_stream_pcm_running(&tscm->tx_stream)) { err = snd_tscm_stream_get_rate(tscm, &rate); if (err < 0) - return err; + goto err_locked; substream->runtime->hw.rate_min = rate; substream->runtime->hw.rate_max = rate; } snd_pcm_set_sync(substream); - +end: + return err; +err_locked: + snd_tscm_stream_lock_release(tscm); return err; } static int pcm_close(struct snd_pcm_substream *substream) { + struct snd_tscm *tscm = substream->private_data; + + snd_tscm_stream_lock_release(tscm); + return 0; } |