From be286f84e33da1a7f83142b64dbd86f600e73363 Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Sun, 11 Apr 2021 11:36:46 +0300 Subject: [PATCH] vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails 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 Reported-by: kernel test robot Reported-by: Dan Carpenter Link: https://lore.kernel.org/r/20210411083646.910546-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang Reviewed-by: Stefano Garzarella --- 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) -- GitLab