Input: make input_register_handler() return error codes

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 154e423..6439f37 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -695,8 +695,7 @@
 
 static int __init evdev_init(void)
 {
-	input_register_handler(&evdev_handler);
-	return 0;
+	return input_register_handler(&evdev_handler);
 }
 
 static void __exit evdev_exit(void)