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| author | Sagi Grimberg <sagi@grimberg.me> | 2017-10-11 14:29:09 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2017-10-18 19:27:52 +0200 |
| commit | 0fc176dfdafc78e66bd74f54e487ca1fc59d01bf (patch) | |
| tree | e240db5cc55c47c3d2c7c48865a9a02a672cb41f /drivers | |
| parent | nvme-rdma: move assignment to declaration (diff) | |
| download | linux-0fc176dfdafc78e66bd74f54e487ca1fc59d01bf.tar.xz linux-0fc176dfdafc78e66bd74f54e487ca1fc59d01bf.zip | |
nvme-rdma: Check that reinit_request got a proper mr
Warn if req->mr is NULL as it should never happen.
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/nvme/host/rdma.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 221ace23aaa5..7e61e6447d2c 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -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); int ret = 0; + if (WARN_ON_ONCE(!req->mr)) + return 0; + ib_dereg_mr(req->mr); req->mr = ib_alloc_mr(dev->pd, IB_MR_TYPE_MEM_REG, |