Commit 879828c6 authored Dec 20, 2014 by Axel Lin Committed by Linus Walleij Jan 08, 2015

gpio: grgpio: Avoid potential NULL pointer dereference



irqmap is optional property, so priv->domain can be NULL if !irqmap.
Thus add NULL test for priv->domain before calling irq_domain_remove()
to prevent NULL pointer dereference.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent 5afb287a

drivers/gpio/gpio-grgpio.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -441,6 +441,7 @@ static int grgpio_probe(struct platform_device *ofdev)
		err = gpiochip_add(gc);
		if (err) {
		dev_err(&ofdev->dev, "Could not add gpiochip\n");
		if (priv->domain)
		irq_domain_remove(priv->domain);
		return err;
		}