tree c66fb0d74d2bd9237a265a011d4ab738b9023f8e
parent 4fb9aa5abdb791defedb3a5ce254ad193e82d77b
author Mikulas Patocka <mpatocka@redhat.com> 1435786236 -0400
committer Mike Snitzer <snitzer@redhat.com> 1439393540 -0400

dm: test return value for DM_MAPIO_SUBMITTED

In properly written code we should not assume that DM_MAPIO_SUBMITTED is
zero. We should test the return value for DM_MAPIO_SUBMITTED rather than
testing it for zero.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>