[PATCH] Net: ethernet: mediatek - Fix possible NULL derefrence.
From: Shailendra Verma <hidden>
Date: 2017-01-27 11:20:09
Also in:
linux-mediatek, lkml, netdev
Subsystem:
mediatek ethernet driver, networking drivers, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
of_match_device could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <redacted> --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 4a62ffd..4495b7b 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c@@ -2369,6 +2369,10 @@ static int mtk_probe(struct platform_device *pdev) int i; match = of_match_device(of_mtk_match, &pdev->dev); + if (!match) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; + } soc = (struct mtk_soc_data *)match->data; eth = devm_kzalloc(&pdev->dev, sizeof(*eth), GFP_KERNEL);
--
1.7.9.5