diff options
| author | John Crispin <john@phrozen.org> | 2016-06-10 11:27:58 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-11 06:29:28 (GMT) |
| commit | 562c5a70400c75f50d99de631666ac7cc2f03958 (patch) | |
| tree | 35ece322f036c00f23f7038088e4e51651f5f87b /drivers/net | |
| parent | 0b392be9a86560dae3af2e7528f226ff465ab549 (diff) | |
| download | linux-562c5a70400c75f50d99de631666ac7cc2f03958.tar.xz | |
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 4763252..11cd730 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -495,6 +495,9 @@ static int mtk_init_fq_dma(struct mtk_eth *eth) eth->scratch_head = kcalloc(cnt, MTK_QDMA_PAGE_SIZE, GFP_KERNEL); + if (unlikely(!eth->scratch_head)) + return -ENOMEM; + dma_addr = dma_map_single(eth->dev, eth->scratch_head, cnt * MTK_QDMA_PAGE_SIZE, DMA_FROM_DEVICE); |