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| author | Paolo Valente | 2019-08-07 19:21:11 +0200 |
|---|---|---|
| committer | Jens Axboe | 2019-08-08 15:31:50 +0200 |
| commit | fd03177c33b287c6541f4048f1d67b7b45a1abc9 (patch) | |
| tree | 1e95e71d6ba6bd86620b9d1267b89e463ed4df2c /fs/block_dev.c | |
| parent | block, bfq: move update of waker and woken list to queue freeing (diff) | |
| download | kernel-qcow2-linux-fd03177c33b287c6541f4048f1d67b7b45a1abc9.tar.gz kernel-qcow2-linux-fd03177c33b287c6541f4048f1d67b7b45a1abc9.tar.xz kernel-qcow2-linux-fd03177c33b287c6541f4048f1d67b7b45a1abc9.zip | |
block, bfq: handle NULL return value by bfq_init_rq()
As reported in [1], the call bfq_init_rq(rq) may return NULL in case
of OOM (in particular, if rq->elv.icq is NULL because memory
allocation failed in failed in ioc_create_icq()).
This commit handles this circumstance.
[1] https://lkml.org/lkml/2019/7/22/824
Cc: Hsin-Yi Wang <hsinyi@google.com>
Cc: Nicolas Boichat <drinkcat@chromium.org>
Cc: Doug Anderson <dianders@chromium.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Hsin-Yi Wang <hsinyi@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/block_dev.c')
0 files changed, 0 insertions, 0 deletions