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Commit ef2156cf authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Kukjin Kim
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ARM: EXYNOS: Handle of of_iomap() failure 



Prevent possible NULL pointer dereference if of_iomap() fails.
Handle the error by skipping such power domain.

Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene@kernel.org>
parent e2608180

arch/arm/mach-exynos/pm_domains.c

+8 −0
Original line number Diff line number Diff line
@@ -138,6 +138,14 @@ static __init int exynos4_pm_init_power_domain(void) 
		pd->pd.name = kstrdup(dev_name(dev), GFP_KERNEL);

		pd->name = pd->pd.name;

		pd->base = of_iomap(np, 0);

		if (!pd->base) {

			dev_warn(&pdev->dev, "Failed to map memory\n");

			kfree(pd->pd.name);

			kfree(pd);

			of_node_put(np);

			continue;

		}



		pd->pd.power_off = exynos_pd_power_off;

		pd->pd.power_on = exynos_pd_power_on;