rtlwifi: Switch locking from semaphores to mutexes

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
index 3844dc9..77d5fa3 100644
--- a/drivers/net/wireless/rtlwifi/wifi.h
+++ b/drivers/net/wireless/rtlwifi/wifi.h
@@ -1193,8 +1193,8 @@
 
 struct rtl_locks {
 	/*sem */
-	struct semaphore ips_sem;
-	struct semaphore conf_sem;
+	struct mutex ips_mutex;
+	struct mutex conf_mutex;
 
 	/*spin lock */
 	spinlock_t irq_th_lock;