s390/sclp: handle default case in sclp memory notifier

When new memory notifier types are added in common code and
unimplemented on s390, return success instead of EINVAL return code.

This prevents breakage when new memory notifier types are added.

Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Sumanth Korikkar <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>

Author: sumanthkorikkar

drivers/s390/char/sclp_cmd.c

@@ -353,7 +353,6 @@ static int sclp_mem_notifier(struct notifier_block *nb,
 		sclp_mem_change_state(start, size, 0);
 		break;
 	default:
-		rc = -EINVAL;
 		break;
 	}
 	mutex_unlock(&sclp_mem_mutex);