Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 019/173] amd-xgbe: use dma_mapping_error to check map errors | Date | Mon, 24 Sep 2018 13:50:53 +0200 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: YueHaibing <yuehaibing@huawei.com>
[ Upstream commit b24dbfe9ce03d9f83306616f22fb0e04e8960abe ]
The dma_mapping_error() returns true or false, but we want to return -ENOMEM if there was an error.
Fixes: 174fd2597b0b ("amd-xgbe: Implement split header receive support") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/amd/xgbe/xgbe-desc.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c @@ -289,7 +289,7 @@ static int xgbe_alloc_pages(struct xgbe_ struct page *pages = NULL; dma_addr_t pages_dma; gfp_t gfp; - int order, ret; + int order; again: order = alloc_order; @@ -316,10 +316,9 @@ again: /* Map the pages */ pages_dma = dma_map_page(pdata->dev, pages, 0, PAGE_SIZE << order, DMA_FROM_DEVICE); - ret = dma_mapping_error(pdata->dev, pages_dma); - if (ret) { + if (dma_mapping_error(pdata->dev, pages_dma)) { put_page(pages); - return ret; + return -ENOMEM; } pa->pages = pages;
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