tree 4f8f4de062db1d65af8480f2d04414b16aa2e168
parent 9470e4a693db84bee7becbba8de01af02bb23c9f
author Jens Axboe <axboe@fb.com> 1434817610 -0600
committer Jens Axboe <axboe@fb.com> 1434817610 -0600

cfq-iosched: fix other locations where blkcg_to_cfqgd() can return NULL

Commit 9470e4a693db only covered the initial bug report, there are
other spots in CFQ where we need to check that we actually have
a valid cfq_group_data structure.

Fixes: e48453c3 ("block, cgroup: implement policy-specific per-blkcg data")
Signed-off-by: Jens Axboe <axboe@fb.com>