PM / devfreq: rk3399_dmc: rename driver and internals to rockchip

[firefly-linux-kernel-4.4.55.git] / drivers / gpio / gpio-74xx-mmio.c

diff --git a/drivers/gpio/gpio-74xx-mmio.c b/drivers/gpio/gpio-74xx-mmio.c
index 6ed7c0fb3378eac88af03b8c125d0a7c9749f3db..6b186829087c4b3f4746ebebb1e327df58486d15 100644 (file)
--- a/drivers/gpio/gpio-74xx-mmio.c
+++ b/drivers/gpio/gpio-74xx-mmio.c
@@ -113,13 +113,16 @@ static int mmio_74xx_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
 
 static int mmio_74xx_gpio_probe(struct platform_device *pdev)
 {
-       const struct of_device_id *of_id =
-               of_match_device(mmio_74xx_gpio_ids, &pdev->dev);
+       const struct of_device_id *of_id;
        struct mmio_74xx_gpio_priv *priv;
        struct resource *res;
        void __iomem *dat;
        int err;
 
+       of_id = of_match_device(mmio_74xx_gpio_ids, &pdev->dev);
+       if (!of_id)
+               return -ENODEV;
+
        priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
        if (!priv)
                return -ENOMEM;