Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 04/36] vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails | Date | Mon, 26 Apr 2021 09:29:46 +0200 |
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From: Eli Cohen <elic@nvidia.com>
[ Upstream commit be286f84e33da1a7f83142b64dbd86f600e73363 ]
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@nvidia.com> Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20210411083646.910546-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 d300f799efcd..aa656f57bf5b 100644 --- a/drivers/vdpa/mlx5/core/mr.c +++ b/drivers/vdpa/mlx5/core/mr.c @@ -273,8 +273,10 @@ 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) -- 2.30.2
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