Commits
Christoph Hellwig committed 1e93b8c2742
blk-mq: dont assume rq->errors is set when returning an error from ->queue_rq rq->errors never has been part of the communication protocol between drivers and the block stack and most drivers will not have initialized it. Return -EIO to upper layers when the driver returns BLK_MQ_RQ_QUEUE_ERROR unconditionally. If a driver want to return a different error it can easily do so by returning success after calling blk_mq_end_io itself. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>