staging:wlan-ng: p80211req_mibset_mibget should be void

this function always returning 0, there are no callers that checks
the return of this function, make this function return void
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlan-ng/p80211req.c

@@ -73,7 +73,7 @@
 #include "p80211req.h"
 
 static void p80211req_handlemsg(wlandevice_t *wlandev, struct p80211msg *msg);
-static int p80211req_mibset_mibget(wlandevice_t *wlandev,
+static void p80211req_mibset_mibget(wlandevice_t *wlandev,
 				   struct p80211msg_dot11req_mibget *mib_msg,
 				   int isget);
 
@@ -177,7 +177,7 @@ static void p80211req_handlemsg(wlandevice_t *wlandev, struct p80211msg *msg)
 	}			/* switch msg->msgcode */
 }
 
-static int p80211req_mibset_mibget(wlandevice_t *wlandev,
+static void p80211req_mibset_mibget(wlandevice_t *wlandev,
 				   struct p80211msg_dot11req_mibget *mib_msg,
 				   int isget)
 {
@@ -254,9 +254,5 @@ static int p80211req_mibset_mibget(wlandevice_t *wlandev,
 			}
 			break;
 		}
-	default:
-		;
 	}
-
-	return 0;
 }