On wto, 2015-02-03 at 18:28 +0100, Krzysztof Kozlowski wrote: > Prevent possible NULL pointer dereference of pointer returned by > of_find_device_by_node(). Handle this by skipping such power domain. > > Additionally fail the init on kstrdup() failure. Such case is actually > not fatal because the name for power domain allocated by kstrdup() is > used only in printk. Still as a precaution handle this as an error > condition. > > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx> Hi Kukjin, What is the status of this patch and the "ARM: EXYNOS: Handle of of_iomap() failure". The latter should be in your tree but I cannot find it. Best regards, Krzysztof > --- > arch/arm/mach-exynos/pm_domains.c | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c > index fd7640a6b503..4c6c29ba58ef 100644 > --- a/arch/arm/mach-exynos/pm_domains.c > +++ b/arch/arm/mach-exynos/pm_domains.c > @@ -116,6 +116,12 @@ static __init int exynos4_pm_init_power_domain(void) > struct device *dev; > > pdev = of_find_device_by_node(np); > + if (!pdev) { > + pr_err("%s: failed to find device for node %s\n", > + __func__, np->name); > + of_node_put(np); > + continue; > + } > dev = &pdev->dev; > > pd = kzalloc(sizeof(*pd), GFP_KERNEL); > @@ -126,6 +132,12 @@ static __init int exynos4_pm_init_power_domain(void) > } > > pd->pd.name = kstrdup(np->name, GFP_KERNEL); > + if (!pd->pd.name) { > + kfree(pd); > + of_node_put(np); > + return -ENOMEM; > + } > + > pd->name = pd->pd.name; > pd->base = of_iomap(np, 0); > if (!pd->base) { -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html