ib_dma_map_sg return 0 on error.
Cc: Keith Busch <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: [email protected]
Cc: [email protected]
Fixes: 711023071960 ("nvme-rdma: add a NVMe over Fabrics RDMA host driver")
Signed-off-by: Jack Wang <[email protected]>
---
drivers/nvme/host/rdma.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 3100643be299..d70bccbcba3e 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1551,7 +1551,7 @@ static int nvme_rdma_dma_map_req(struct ib_device *ibdev, struct request *rq,
*count = ib_dma_map_sg(ibdev, req->data_sgl.sg_table.sgl,
req->data_sgl.nents, rq_dma_dir(rq));
- if (unlikely(*count <= 0)) {
+ if (unlikely(!*count)) {
ret = -EIO;
goto out_free_table;
}
@@ -1574,7 +1574,7 @@ static int nvme_rdma_dma_map_req(struct ib_device *ibdev, struct request *rq,
req->metadata_sgl->sg_table.sgl,
req->metadata_sgl->nents,
rq_dma_dir(rq));
- if (unlikely(*pi_count <= 0)) {
+ if (unlikely(!*pi_count)) {
ret = -EIO;
goto out_free_pi_table;
}
--
2.34.1