Merge branch 'for-3.10' of git://linux-nfs.org/~bfields/linux

[firefly-linux-kernel-4.4.55.git] / sound / core / pcm_native.c

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index eb560fa32321eff55002830cf78f2764d7a09518..ccfa383f1fda33d5cd8e4d6ed16e42ed875cc5a1 100644 (file)
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -25,7 +25,7 @@
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/pm_qos.h>
-#include <linux/uio.h>
+#include <linux/aio.h>
 #include <linux/dma-mapping.h>
 #include <sound/core.h>
 #include <sound/control.h>
@@ -898,6 +898,8 @@ static struct action_ops snd_pcm_action_start = {
 /**
  * snd_pcm_start - start all linked streams
  * @substream: the PCM substream instance
+ *
+ * Return: Zero if successful, or a negative error code.
  */
 int snd_pcm_start(struct snd_pcm_substream *substream)
 {
@@ -951,6 +953,8 @@ static struct action_ops snd_pcm_action_stop = {
  * @state: PCM state after stopping the stream
  *
  * The state of each stream is then changed to the given state unconditionally.
+ *
+ * Return: Zero if succesful, or a negative error code.
  */
 int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t state)
 {
@@ -965,6 +969,8 @@ EXPORT_SYMBOL(snd_pcm_stop);
  *
  * After stopping, the state is changed to SETUP.
  * Unlike snd_pcm_stop(), this affects only the given stream.
+ *
+ * Return: Zero if succesful, or a negative error code.
  */
 int snd_pcm_drain_done(struct snd_pcm_substream *substream)
 {
@@ -1098,6 +1104,9 @@ static struct action_ops snd_pcm_action_suspend = {
  * @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.
  */
 int snd_pcm_suspend(struct snd_pcm_substream *substream)
 {
@@ -1120,6 +1129,8 @@ EXPORT_SYMBOL(snd_pcm_suspend);
  * @pcm: the PCM instance
  *
  * After this call, all streams are changed to SUSPENDED state.
+ *
+ * Return: Zero if successful (or @pcm is %NULL), or a negative error code.
  */
 int snd_pcm_suspend_all(struct snd_pcm *pcm)
 {
@@ -1343,6 +1354,8 @@ static struct action_ops snd_pcm_action_prepare = {
  * snd_pcm_prepare - prepare the PCM substream to be triggerable
  * @substream: the PCM substream instance
  * @file: file to refer f_flags
+ *
+ * Return: Zero if successful, or a negative error code.
  */
 static int snd_pcm_prepare(struct snd_pcm_substream *substream,
                           struct file *file)