Commit f661017e authored by Anastasia Belova's avatar Anastasia Belova Committed by Viresh Kumar
Browse files

cpufreq: brcmstb-avs-cpufreq: add check for cpufreq_cpu_get's return value 



cpufreq_cpu_get may return NULL. To avoid NULL-dereference check it
and return 0 in case of error.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: de322e08 ("cpufreq: brcmstb-avs-cpufreq: AVS CPUfreq driver for Broadcom STB SoCs")
Signed-off-by: default avatarAnastasia Belova <abelova@astralinux.ru>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent f21401ca

drivers/cpufreq/brcmstb-avs-cpufreq.c

+2 −0
Original line number Diff line number Diff line
@@ -481,6 +481,8 @@ static bool brcm_avs_is_firmware_loaded(struct private_data *priv) 
static unsigned int brcm_avs_cpufreq_get(unsigned int cpu)

{

	struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);

	if (!policy)

		return 0;

	struct private_data *priv = policy->driver_data;



	cpufreq_cpu_put(policy);