gpio: palmas: fix a possible NULL dereference

of_match_device could return NULL, and so cause a NULL pointer dereference later. Reported-by: coverity (CID 1130700) Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
mariux64 · Nov 17, 2015 · 5664de2 · 5664de2
1 parent 853f0cb
commit 5664de2
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c
@@ -167,6 +167,8 @@ static int palmas_gpio_probe(struct platform_device *pdev)
 	const struct palmas_device_data *dev_data;
 
 	match = of_match_device(of_palmas_gpio_match, &pdev->dev);
+	if (!match)
+		return -ENODEV;
 	dev_data = match->data;
 	if (!dev_data)
 		dev_data = &palmas_dev_data;