[PATCH] Soc: mediatek - Fix possible NULL derefrence.
From: Shailendra Verma <hidden>
Date: 2017-01-27 11:18:11
Also in:
linux-mediatek, lkml
Subsystem:
arm/mediatek soc support, the rest · Maintainers:
Matthias Brugger, AngeloGioacchino Del Regno, Linus Torvalds
of_match_device could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <redacted> --- drivers/soc/mediatek/mtk-pmic-wrap.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index a5f1093..c48db98 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);
--
1.7.9.5