Input: make input_register_handler() return error codes

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 033e3aa..9f3529a 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -606,8 +606,7 @@
 
 static int __init joydev_init(void)
 {
-	input_register_handler(&joydev_handler);
-	return 0;
+	return input_register_handler(&joydev_handler);
 }
 
 static void __exit joydev_exit(void)