net: mediatek: add missing return code check
The code fails to check if the scratch memory was properly allocated. Add this check and return with an error if the allocation failed. Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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0b392be9a8
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562c5a7040
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@ -495,6 +495,9 @@ static int mtk_init_fq_dma(struct mtk_eth *eth)
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eth->scratch_head = kcalloc(cnt, MTK_QDMA_PAGE_SIZE,
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GFP_KERNEL);
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if (unlikely(!eth->scratch_head))
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return -ENOMEM;
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dma_addr = dma_map_single(eth->dev,
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eth->scratch_head, cnt * MTK_QDMA_PAGE_SIZE,
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DMA_FROM_DEVICE);
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