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Konstantin Khlebnikov authored
commit d5274b3c upstream. Fix trivial use-after-free. This could be last reference to bfqg. Fixes: 8f9bebc3 ("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>
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