pinctrl: samsung: Handle memory allocation failure during wakeup banks init



Check if kmemdup failed during wakeup banks initialization.  Otherwise
NULL pointer would be stored under "irq_chip" member of bank and later
dereferenced in interrupt handler.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

parent 71b96c3a

drivers/pinctrl/samsung/pinctrl-exynos.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -479,6 +479,8 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
	if (match) {		if (match) {
	irq_chip = kmemdup(match->data,		irq_chip = kmemdup(match->data,
	sizeof(*irq_chip), GFP_KERNEL);		sizeof(*irq_chip), GFP_KERNEL);
			if (!irq_chip)
			return -ENOMEM;
	wkup_np = np;		wkup_np = np;
	break;		break;
	}		}