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authorTakashi Iwai <[email protected]>2019-01-18 16:37:14 +0000
committerTakashi Iwai <[email protected]>2019-01-18 16:37:21 +0000
commit436ec40e0cdf74eae90af6be6c287396e388f1fb (patch)
treeec85647d69d9d2a8f47da48e1ef0175c457c4bcc /sound/core/pcm_native.c
parentALSA: hda: program stripe control for codec (diff)
parentALSA: pcm: Make snd_pcm_suspend() local static (diff)
downloadkernel-436ec40e0cdf74eae90af6be6c287396e388f1fb.tar.gz
kernel-436ec40e0cdf74eae90af6be6c287396e388f1fb.zip
Merge branch 'topic/pcm-device-suspend' into for-next
Pull the PCM suspend improvement / cleanup. This moves the most of snd_pcm_suspend*() calls into PCM's own device PM ops. There should be no change from the functionality POV. Signed-off-by: Takashi Iwai <[email protected]>
Diffstat (limited to 'sound/core/pcm_native.c')
-rw-r--r--sound/core/pcm_native.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 818dff1de545..26afb6b0889a 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1460,29 +1460,24 @@ static const struct action_ops snd_pcm_action_suspend = {
.post_action = snd_pcm_post_suspend
};
-/**
+/*
* snd_pcm_suspend - trigger SUSPEND to all linked streams
* @substream: the PCM substream
*
* After this call, all streams are changed to SUSPENDED state.
*
- * Return: Zero if successful (or @substream is %NULL), or a negative error
- * code.
+ * Return: Zero if successful, or a negative error code.
*/
-int snd_pcm_suspend(struct snd_pcm_substream *substream)
+static int snd_pcm_suspend(struct snd_pcm_substream *substream)
{
int err;
unsigned long flags;
- if (! substream)
- return 0;
-
snd_pcm_stream_lock_irqsave(substream, flags);
err = snd_pcm_action(&snd_pcm_action_suspend, substream, 0);
snd_pcm_stream_unlock_irqrestore(substream, flags);
return err;
}
-EXPORT_SYMBOL(snd_pcm_suspend);
/**
* snd_pcm_suspend_all - trigger SUSPEND to all substreams in the given pcm