backend: do_dry_run(): get_io_u() can return an error pointer
authorJens Axboe <axboe@fb.com>
Fri, 29 Jul 2016 15:59:38 +0000 (09:59 -0600)
committerJens Axboe <axboe@fb.com>
Fri, 29 Jul 2016 15:59:38 +0000 (09:59 -0600)
commit99955d3d3e290ccb06583a821a8112210e4b332d
treef09a7b3a9eeee5e25deeaa935037eac0cff9683a
parentaa2b823c02031be3d7edf0a569ed90882a8411c3
backend: do_dry_run(): get_io_u() can return an error pointer

Don't just check for NULL.

Signed-off-by: Jens Axboe <axboe@fb.com>
backend.c