diff options
Diffstat (limited to 'block/elevator.c')
| -rw-r--r-- | block/elevator.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/elevator.c b/block/elevator.c index 4bb2f0c93fa6..153926a90901 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -1055,6 +1055,10 @@ static int __elevator_change(struct request_queue *q, const char *name) char elevator_name[ELV_NAME_MAX]; struct elevator_type *e; + /* Make sure queue is not in the middle of being removed */ + if (!test_bit(QUEUE_FLAG_REGISTERED, &q->queue_flags)) + return -ENOENT; + /* * Special case for mq, turn off scheduling */ |