ALSA: add/change some comments describing function return values

script/kernel-doc reports the following type of warnings (when run in verbose
mode):

Warning(sound/core/init.c:152): No description found for return value of
'snd_card_create'

To fix that:
- add missing descriptions of function return values
- use "Return:" sections to describe those return values

Along the way:
- complete some descriptions
- fix some typos

Signed-off-by: Yacine Belkadi <yacine.belkadi.1@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/sound/core/device.c b/sound/core/device.c
index f03cb54..df88def 100644
--- a/sound/core/device.c
+++ b/sound/core/device.c
@@ -39,7 +39,7 @@
  * The data pointer plays a role as the identifier, too, so the
  * pointer address must be unique and unchanged.
  *
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
  */
 int snd_device_new(struct snd_card *card, snd_device_type_t type,
 		   void *device_data, struct snd_device_ops *ops)
@@ -73,7 +73,7 @@ EXPORT_SYMBOL(snd_device_new);
  * callbacks, dev_disconnect and dev_free, corresponding to the state.
  * Then release the device.
  *
- * Returns zero if successful, or a negative error code on failure or if the
+ * Return: Zero if successful, or a negative error code on failure or if the
  * device not found.
  */
 int snd_device_free(struct snd_card *card, void *device_data)
@@ -116,7 +116,7 @@ EXPORT_SYMBOL(snd_device_free);
  *
  * Usually called from snd_card_disconnect().
  *
- * Returns zero if successful, or a negative error code on failure or if the
+ * Return: Zero if successful, or a negative error code on failure or if the
  * device not found.
  */
 int snd_device_disconnect(struct snd_card *card, void *device_data)
@@ -151,7 +151,7 @@ int snd_device_disconnect(struct snd_card *card, void *device_data)
  * but it can be called later if any new devices are created after
  * invocation of snd_card_register().
  *
- * Returns zero if successful, or a negative error code on failure or if the
+ * Return: Zero if successful, or a negative error code on failure or if the
  * device not found.
  */
 int snd_device_register(struct snd_card *card, void *device_data)