[alsa-devel] [PATCH 2/5] ALSA: pcm: Refactoring snd_pcm_action()
Takashi Iwai
tiwai at suse.de
Tue Nov 4 14:28:13 CET 2014
Just a small code refactoring to reduce more lines.
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
sound/core/pcm_native.c | 35 ++++++++++-------------------------
1 file changed, 10 insertions(+), 25 deletions(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index b92b605fc784..ca224fa2a33a 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -900,14 +900,19 @@ static int snd_pcm_action_single(struct action_ops *ops,
return res;
}
-/* call in mutex-protected context */
-static int snd_pcm_action_mutex(struct action_ops *ops,
- struct snd_pcm_substream *substream,
- int state)
+/*
+ * Note: call with stream lock
+ */
+static int snd_pcm_action(struct action_ops *ops,
+ struct snd_pcm_substream *substream,
+ int state)
{
int res;
- if (snd_pcm_stream_linked(substream)) {
+ if (!snd_pcm_stream_linked(substream))
+ return snd_pcm_action_single(ops, substream, state);
+
+ if (substream->pcm->nonatomic) {
if (!mutex_trylock(&substream->group->mutex)) {
mutex_unlock(&substream->self_group.mutex);
mutex_lock(&substream->group->mutex);
@@ -916,24 +921,6 @@ static int snd_pcm_action_mutex(struct action_ops *ops,
res = snd_pcm_action_group(ops, substream, state, 1);
mutex_unlock(&substream->group->mutex);
} else {
- res = snd_pcm_action_single(ops, substream, state);
- }
- return res;
-}
-
-/*
- * Note: call with stream lock
- */
-static int snd_pcm_action(struct action_ops *ops,
- struct snd_pcm_substream *substream,
- int state)
-{
- int res;
-
- if (substream->pcm->nonatomic)
- return snd_pcm_action_mutex(ops, substream, state);
-
- if (snd_pcm_stream_linked(substream)) {
if (!spin_trylock(&substream->group->lock)) {
spin_unlock(&substream->self_group.lock);
spin_lock(&substream->group->lock);
@@ -941,8 +928,6 @@ static int snd_pcm_action(struct action_ops *ops,
}
res = snd_pcm_action_group(ops, substream, state, 1);
spin_unlock(&substream->group->lock);
- } else {
- res = snd_pcm_action_single(ops, substream, state);
}
return res;
}
--
2.1.3
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