tree 417973021a7554627ba93b791c98fede30a5c0cb
parent 514cf4f881dc82507d87d2ccd5e7478fd36632fa
author Mikulas Patocka <mpatocka@redhat.com> 1556208474 -0400
committer Mike Snitzer <snitzer@redhat.com> 1556292572 -0400

dm delay: fix a crash when invalid device is specified

When the target line contains an invalid device, delay_ctr() will call
delay_dtr() with NULL workqueue.  Attempting to destroy the NULL
workqueue causes a crash.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>