[PATCH] ARM: EXYNOS: pd: fix resource deallocation on error path

Vladimir Zapolskiy vz at mleia.com
Wed Jul 29 13:15:13 PDT 2015

The change fixes a bug introduced by 2be2a3ff42a5, memory allocated
by kstrdup_const() must be always deallocated with kfree_const(),
otherwise there is a risk of kfree'ing ro memory.

Also remove unneeded of_node_put(), if for_each_compatible_node() body
execution is not terminated, this prevents from double kfree() in

Signed-off-by: Vladimir Zapolskiy <vz at mleia.com>
 arch/arm/mach-exynos/pm_domains.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 6001f1c..4a87e86 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -146,9 +146,8 @@ static __init int exynos4_pm_init_power_domain(void)
 		pd->base = of_iomap(np, 0);
 		if (!pd->base) {
 			pr_warn("%s: failed to map memory\n", __func__);
-			kfree(pd->pd.name);
+			kfree_const(pd->pd.name);
-			of_node_put(np);

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