diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c
index 253a1d1a8..cd4995e74 100755
--- a/drivers/media/rc/imon.c
+++ b/drivers/media/rc/imon.c
@@ -1153,10 +1153,7 @@ static int imon_ir_change_protocol(struct rc_dev *rc, u64 *rc_proto)
 
 	memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet));
 
-	if (!mutex_is_locked(&ictx->lock)) {
-		unlock = true;
-		mutex_lock(&ictx->lock);
-	}
+	unlock = mutex_trylock(&ictx->lock);
 
 	retval = send_packet(ictx);
 	if (retval)