On Wed, May 25, 2016 at 11:23:27PM -0700, Ming Lin wrote: > From: Ming Lin <ming.l@xxxxxxxxxxx> > > blk_mq_init_queue() calls blk_mq_init_allocated_queue(), but q->mq_ops > was not cleared when blk_mq_init_allocated_queue() fails. > Then blk_cleanup_queue() calls blk_mq_free_queue() which will crash because: > - q->all_q_node is not added to all_q_list yet > - q->tag_set is NULL > - hctx was not setup yet or already freed > > Fixed it by clearing q->mq_ops on error path. Looks fine, Reviewed-by: Christoph Hellwig <hch@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
