Konstantin Khlebnikov 381992bccc block: bfq: swap puts in bfqg_and_blkg_put
commit d5274b3cd6a814ccb2f56d81ee87cbbf51bd4cf7 upstream.

Fix trivial use-after-free. This could be last reference to bfqg.

Fixes: 8f9bebc33dd7 ("block, bfq: access and cache blkg data only when safe")
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-19 22:43:35 +02:00
..
2018-06-21 04:02:49 +09:00
2017-08-29 10:50:30 -06:00
2018-06-21 04:02:49 +09:00