From: Eli Cohen <elic@nvidia.com>
Date: Sun, 11 Apr 2021 08:36:46 +0000 (+0300)
Subject: vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails
X-Git-Tag: v5.15~1361^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=be286f84e33da1a7f83142b64dbd86f600e73363;p=platform%2Fkernel%2Flinux-starfive.git

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 <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>
---

diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c
index 3908ff2..800cfd1 100644
--- a/drivers/vdpa/mlx5/core/mr.c
+++ b/drivers/vdpa/mlx5/core/mr.c
@@ -278,8 +278,10 @@ done:
 	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)