diff options
| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2016-02-20 10:18:57 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-02-20 17:45:25 +0300 |
| commit | 2a71e701660d7aa9ce1a740588dbf13b975deb10 (patch) | |
| tree | 39d699e3e8a66be4bd363df9d1cdb97570072a22 /sound/firewire/bebob/bebob_stream.c | |
| parent | 14a37ac1bf8a2ba9b19032195c371c7b0857ca87 (diff) | |
| download | linux-2a71e701660d7aa9ce1a740588dbf13b975deb10.tar.xz | |
ALSA: bebob: move mutex from function callee to callers
Currently, critical section is protected by mutex in functions of
fireworks_stream.c. Callers increments/decrements substreams counter
before calling the functions. Moving mutex to the callers code allows
to change type of the substream counter from atomic_t to unsigned int.
This commit is a preparation for obsoleting usage of atomic_t for
substream counter.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/bebob/bebob_stream.c')
| -rw-r--r-- | sound/firewire/bebob/bebob_stream.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 073ad6d8a76e..6809913110f4 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -589,8 +589,6 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate) unsigned int curr_rate; int err = 0; - mutex_lock(&bebob->mutex); - /* Need no substreams */ if (atomic_read(&bebob->substreams_counter) == 0) goto end; @@ -722,7 +720,6 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate) } } end: - mutex_unlock(&bebob->mutex); return err; } @@ -738,8 +735,6 @@ void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) master = &bebob->tx_stream; } - mutex_lock(&bebob->mutex); - if (atomic_read(&bebob->substreams_counter) == 0) { amdtp_stream_pcm_abort(master); amdtp_stream_stop(master); @@ -749,8 +744,6 @@ void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) break_both_connections(bebob); } - - mutex_unlock(&bebob->mutex); } void snd_bebob_stream_update_duplex(struct snd_bebob *bebob) |