dma_map_sg return 0 on error. Cc: Tariq Toukan <tariqt@xxxxxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Cc: Eric Dumazet <edumazet@xxxxxxxxxx> Cc: Jakub Kicinski <kuba@xxxxxxxxxx> Cc: Paolo Abeni <pabeni@xxxxxxxxxx> Cc: netdev@xxxxxxxxxxxxxxx Cc: linux-rdma@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxx> Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx> --- drivers/net/ethernet/mellanox/mlx4/icm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.c b/drivers/net/ethernet/mellanox/mlx4/icm.c index d89a3da89e5a..59b8b3c73582 100644 --- a/drivers/net/ethernet/mellanox/mlx4/icm.c +++ b/drivers/net/ethernet/mellanox/mlx4/icm.c @@ -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; } -- 2.34.1
