Commit 426db24d authored by Dhananjay Ugwekar's avatar Dhananjay Ugwekar Committed by Mario Limonciello
Browse files

cpufreq/amd-pstate: Add missing NULL ptr check in amd_pstate_update 



Check if policy is NULL before dereferencing it in amd_pstate_update.

Fixes: e8f555da ("cpufreq/amd-pstate: fix setting policy current frequency value")
Signed-off-by: default avatarDhananjay Ugwekar <dhananjay.ugwekar@amd.com>
Reviewed-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: default avatarGautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20250205112523.201101-11-dhananjay.ugwekar@amd.com


Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
parent b8994348

drivers/cpufreq/amd-pstate.c

+3 −0
Original line number Diff line number Diff line
@@ -551,6 +551,9 @@ static void amd_pstate_update(struct amd_cpudata *cpudata, u8 min_perf, 
	struct cpufreq_policy *policy = cpufreq_cpu_get(cpudata->cpu);

	u8 nominal_perf = READ_ONCE(cpudata->nominal_perf);



	if (!policy)

		return;



	des_perf = clamp_t(u8, des_perf, min_perf, max_perf);



	policy->cur = perf_to_freq(cpudata, des_perf);