gpio: unregister gpiochip device before removing it

jhovold · linusw · commit 01cca93a9491 · 2015-01-14T14:27:01.000+01:00
Unregister gpiochip device (used to export information through sysfs)
before removing it internally. This way removal will reverse addition.

Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
@@ -327,6 +327,8 @@ void gpiochip_remove(struct gpio_chip *chip)
 	unsigned long	flags;
 	unsigned	id;
 
+	gpiochip_unexport(chip);
+
 	gpiochip_irqchip_remove(chip);
 
 	acpi_gpiochip_remove(chip);
@@ -343,7 +345,6 @@ void gpiochip_remove(struct gpio_chip *chip)
 
 	list_del(&chip->list);
 	spin_unlock_irqrestore(&gpio_lock, flags);
-	gpiochip_unexport(chip);
 
 	kfree(chip->desc);
 	chip->desc = NULL;
