Re: [PATCH 7/7] cpufreq: ppc_cbe: fix possible object reference leak

From: Markus Elfring
Date: Tue Apr 02 2019 - 08:50:49 EST


> @@ -86,6 +86,7 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
> if (!cbe_get_cpu_pmd_regs(policy->cpu) ||
> !cbe_get_cpu_mic_tm_regs(policy->cpu)) {
> pr_info("invalid CBE regs pointers for cpufreq\n");
> + of_node_put(cpu);
> return -EINVAL;
> }

I have taken another look at the implementation of this function.
I find that the second statement âreturn -EINVALâ would need related
source code adjustments.
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/drivers/cpufreq/ppc_cbe_cpufreq.c?id=05d08e2995cbe6efdb993482ee0d38a77040861a#n96

How do you think about to complete the exception handling here?

Regards,
Markus