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authorJian Shen <shenjian15@huawei.com>2018-09-21 18:41:44 +0300
committerDavid S. Miller <davem@davemloft.net>2018-09-22 05:29:32 +0300
commit2211f4e1955f11df5fe8df24f5eeda5a5bbe6748 (patch)
treee757dd4a2523082e3580b356f91421a3aff20293 /drivers/net/ethernet/hisilicon
parent7a8101109dd37837f587cd56f3111d4fc17a07f5 (diff)
downloadlinux-2211f4e1955f11df5fe8df24f5eeda5a5bbe6748.tar.xz
net: hns3: Add unlikely for dma_mapping_error check
For dma_mapping_error is unlikely happened, this patch adds unlikely for dma_mapping_error check. Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon')
-rw-r--r--drivers/net/ethernet/hisilicon/hns3/hns3_enet.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 73b42d3326ad..8b637077642d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1807,7 +1807,7 @@ static int hns3_map_buffer(struct hns3_enet_ring *ring, struct hns3_desc_cb *cb)
cb->dma = dma_map_page(ring_to_dev(ring), cb->priv, 0,
cb->length, ring_to_dma_dir(ring));
- if (dma_mapping_error(ring_to_dev(ring), cb->dma))
+ if (unlikely(dma_mapping_error(ring_to_dev(ring), cb->dma)))
return -EIO;
return 0;