Commit 0c1f77d8 authored by Jack Wang's avatar Jack Wang Committed by Jakub Kicinski
Browse files

net/mlx4: Fix error check for dma_map_sg 



dma_map_sg return 0 on error.

Signed-off-by: default avatarJack Wang <jinpu.wang@ionos.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20220825063533.21015-1-jinpu.wang@ionos.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 6005a8ae

drivers/net/ethernet/mellanox/mlx4/icm.c

+2 −2
Original line number Diff line number Diff line
@@ -208,7 +208,7 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages, 
						chunk->sg, chunk->npages,

						DMA_BIDIRECTIONAL);



			if (chunk->nsg <= 0)

			if (!chunk->nsg)

				goto fail;

		}
@@ -222,7 +222,7 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages, 
		chunk->nsg = dma_map_sg(&dev->persist->pdev->dev, chunk->sg,

					chunk->npages, DMA_BIDIRECTIONAL);



		if (chunk->nsg <= 0)

		if (!chunk->nsg)

			goto fail;

	}