ALSA: usb-audio: void return type of snd_usb_endpoint_deactivate()

The return value of snd_usb_endpoint_deactivate() is not used,
make the function have no return value.
Update the documentation to reflect what the function is actually
doing.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 5 insertions, 10 deletions

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index e84732c874cb..26856601422b 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -946,28 +946,23 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep)
  *
  * @ep: the endpoint to deactivate
  *
- * If the endpoint is not currently in use, this functions will select the
- * alternate interface setting 0 for the interface of this endpoint.
+ * If the endpoint is not currently in use, this functions will
+ * deactivate its associated URBs.
  *
  * In case of any active users, this functions does nothing.
- *
- * Returns an error if usb_set_interface() failed, 0 in all other
- * cases.
  */
-int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep)
+void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep)
 {
         if (!ep)
-                return -EINVAL;
+                return;
 
         if (ep->use_count != 0)
-                return 0;
+                return;
 
         deactivate_urbs(ep, true);
         wait_clear_urbs(ep);
 
         clear_bit(EP_FLAG_ACTIVATED, &ep->flags);
-
-        return 0;
 }
 
 /**