Commit 0fc176df authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Christoph Hellwig
Browse files

nvme-rdma: Check that reinit_request got a proper mr 



Warn if req->mr is NULL as it should never happen.

Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 0c5b43b9

drivers/nvme/host/rdma.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -274,6 +274,9 @@ static int nvme_rdma_reinit_request(void *data, struct request *rq) 
	struct nvme_rdma_request *req = blk_mq_rq_to_pdu(rq);

	struct nvme_rdma_request *req = blk_mq_rq_to_pdu(rq);

	int ret = 0;

	int ret = 0;





	if (WARN_ON_ONCE(!req->mr))

		return 0;



	ib_dereg_mr(req->mr);

	ib_dereg_mr(req->mr);





	req->mr = ib_alloc_mr(dev->pd, IB_MR_TYPE_MEM_REG,

	req->mr = ib_alloc_mr(dev->pd, IB_MR_TYPE_MEM_REG,