[PATCH] vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails
From: Eli Cohen <hidden>
Date: 2021-04-11 08:49:00
Subsystem:
mellanox mlx5 vdpa driver, the rest, virtio core · Maintainers:
Dragos Tatulea, Linus Torvalds, "Michael S. Tsirkin", Jason Wang
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 <redacted>
Reported-by: kernel test robot <redacted>
Reported-by: Dan Carpenter <redacted>
---
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)
--
2.30.1