diff options
| author | Ming Lei <[email protected]> | 2019-02-19 11:08:19 +0800 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2019-02-19 09:19:06 -0700 |
| commit | 49b1f22b567ba1d7d8174950be4398a69d0effb7 (patch) | |
| tree | 52811398366d5cc858edaebe17ca7cb1238a9777 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 6fb845f0e78de19eaaf6a2d351702474e44b6a9e (diff) | |
block: avoid to READ fields of null bio
rq->bio can be NULL sometimes, such as flush request, so don't
read bio->bi_seg_front_size until this 'bio' is checked as valid.
Cc: Bart Van Assche <[email protected]>
Reported-by: Bart Van Assche <[email protected]>
Fixes: dcebd755926b0f39dd1e ("block: use bio_for_each_bvec() to compute multi-page bvec count")
Signed-off-by: Ming Lei <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions