blk/nvme: fix NULL deref in rq_qos_done_bio() on multipath failover#595

blktests-ci[bot] wants to merge 2 commits intolinus-master_baselinux-blktests/linux-block:linus-master_basefrom

series/1058117=>linus-masterlinux-blktests/linux-block:series/1058117=>linus-masterCopy head branch name to clipboard