From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 20:31:10 +0000 (+0200)
Subject: ALSA: usb-audio: void return type of snd_usb_endpoint_deactivate()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9b7c552bba88748001574925b80ba520691b0e4d;p=linux-beck.git

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>
---

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;
 }
 
 /**
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 3bd02f0d226c..1c7e8ee48abc 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -22,7 +22,7 @@ int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
-int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
+void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free(struct list_head *head);
 
 int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep);