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authorshailendra.v@samsung.com <shailendra.v@samsung.com>2017-01-27 14:17:48 +0300
committerMatthias Brugger <matthias.bgg@gmail.com>2017-05-15 11:47:25 +0300
commit58a823dd7b515827ed07adb268e1769b3c292586 (patch)
tree3eceb889b0c132363717ef403777567c7fad7382 /drivers/soc/mediatek
parentf282693f808723b6593db34c47fa0e17cb52586f (diff)
downloadlinux-58a823dd7b515827ed07adb268e1769b3c292586.tar.xz
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 <shailendra.v@samsung.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'drivers/soc/mediatek')
-rw-r--r--drivers/soc/mediatek/mtk-pmic-wrap.c5
1 files changed, 5 insertions, 0 deletions
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);