在 2021/4/11 下午4:36, Eli Cohen 写道:
Set err = -ENOMEM if dma_map_sg_attrs() fails so the function reutrns
error.
Fixes: 94abbccdf291 ("vdpa/mlx5: Add shared memory registration code")
Signed-off-by: Eli Cohen <elic@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/vdpa/mlx5/core/mr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c
index 3908ff28eec0..800cfd1967ad 100644
--- a/drivers/vdpa/mlx5/core/mr.c
+++ b/drivers/vdpa/mlx5/core/mr.c
@@ -278,8 +278,10 @@ static int map_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct_mr
mr->log_size = log_entity_size;
mr->nsg = nsg;
mr->nent = dma_map_sg_attrs(dma, mr->sg_head.sgl, mr->nsg, DMA_BIDIRECTIONAL, 0);
- if (!mr->nent)
+ if (!mr->nent) {
+ err = -ENOMEM;
goto err_map;
+ }
err = create_direct_mr(mvdev, mr);
if (err)
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
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