[PATCH] powerpc/sysdev/of_rtc: Fix possible memory leak in of_instantiate_rtc

[He Ying]

Ping. Any ideas about this patch?

在 2021/11/3 9:47, He Ying 写道:
> If of_address_to_resource() in of_instantiate_rtc() fails, previously
> allocated memory res is not freed. Add missing kfree() for it.
>
> Signed-off-by: He Ying <heying24 at huawei.com>
> ---
>   arch/powerpc/sysdev/of_rtc.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/sysdev/of_rtc.c b/arch/powerpc/sysdev/of_rtc.c
> index 1f408d34a6a7..23b896996c2f 100644
> --- a/arch/powerpc/sysdev/of_rtc.c
> +++ b/arch/powerpc/sysdev/of_rtc.c
> @@ -44,6 +44,7 @@ void __init of_instantiate_rtc(void)
>   				printk(KERN_ERR "OF RTC: Error "
>   				       "translating resources for %pOF\n",
>   				       node);
> +				kfree(res);
>   				continue;
>   			}
>