From 58a823dd7b515827ed07adb268e1769b3c292586 Mon Sep 17 00:00:00 2001 From: "shailendra.v@samsung.com" Date: Fri, 27 Jan 2017 16:47:48 +0530 Subject: soc: mediatek: PMIC wrap: Fix possible NULL derefrence. of_match_device could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma Signed-off-by: Matthias Brugger --- drivers/soc/mediatek/mtk-pmic-wrap.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/soc') diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c index 285b434449a6..c80a04e1b2b1 100644 --- a/drivers/soc/mediatek/mtk-pmic-wrap.c +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c @@ -1117,6 +1117,11 @@ static int pwrap_probe(struct platform_device *pdev) const struct of_device_id *of_slave_id = NULL; struct resource *res; + if (!of_id) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; + } + if (pdev->dev.of_node->child) of_slave_id = of_match_node(of_slave_match_tbl, pdev->dev.of_node->child); -- cgit v1.2.3-59-g8ed1b