The devm_gpiod_get() function returns either a valid pointer to
struct gpio_desc or ERR_PTR() error value, check for NULL is bogus.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
        of_node_put(child);
 
        pd->enable_gpio = devm_gpiod_get(&client->dev, "enable", GPIOD_OUT_LOW);
-       if (!pd->enable_gpio) {
+       if (IS_ERR(pd->enable_gpio)) {
                dev_err(&client->dev, "Error getting GPIO\n");
-               return -EINVAL;
+               return PTR_ERR(pd->enable_gpio);
        }
 
        return 0;