/*
* Special case for mq, turn off scheduling
*/
- if (q->mq_ops && !strncmp(name, "none", 4))
+ if (q->mq_ops && !strncmp(name, "none", 4)) {
+ if (!q->elevator)
+ return 0;
return elevator_switch(q, NULL);
+ }
strlcpy(elevator_name, name, sizeof(elevator_name));
e = elevator_get(q, strstrip(elevator_name), true);