X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fgpio%2Fgpio-syscon.c;h=7b25fdf64802339967ab541bb5ecd5bb876779d7;hb=79e63f50c2c7da8333defccf273ba45578573472;hp=045a952576c708e253de29438abaec95640989f2;hpb=cb0f3f320d64831afb39940863c5927d6af25514;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c
index 045a952576c7..7b25fdf64802 100644
--- a/drivers/gpio/gpio-syscon.c
+++ b/drivers/gpio/gpio-syscon.c
@@ -187,11 +187,15 @@ MODULE_DEVICE_TABLE(of, syscon_gpio_ids);
 static int syscon_gpio_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	const struct of_device_id *of_id = of_match_device(syscon_gpio_ids, dev);
+	const struct of_device_id *of_id;
 	struct syscon_gpio_priv *priv;
 	struct device_node *np = dev->of_node;
 	int ret;
 
+	of_id = of_match_device(syscon_gpio_ids, dev);
+	if (!of_id)
+		return -ENODEV;
+
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;