6.11-stable review patch. If anyone has any objections, please let me know.
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From: Dhananjay Ugwekar Dhananjay.Ugwekar@amd.com
[ Upstream commit 49243adc715e6ae34d6cc003827e63bcf5b3a21d ]
Fix the reference counting of cpufreq_policy object in amd_pstate_update() function by adding the missing cpufreq_cpu_put().
Fixes: e8f555daacd3 ("cpufreq/amd-pstate: fix setting policy current frequency value") Signed-off-by: Dhananjay Ugwekar Dhananjay.Ugwekar@amd.com Reviewed-by: Perry Yuan perry.yuan@amd.com Signed-off-by: Viresh Kumar viresh.kumar@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/cpufreq/amd-pstate.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 259a917da75f3..073ca9caf52ac 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -554,12 +554,15 @@ static void amd_pstate_update(struct amd_cpudata *cpudata, u32 min_perf, }
if (value == prev) - return; + goto cpufreq_policy_put;
WRITE_ONCE(cpudata->cppc_req_cached, value);
amd_pstate_update_perf(cpudata, min_perf, des_perf, max_perf, fast_switch); + +cpufreq_policy_put: + cpufreq_cpu_put(policy); }
static int amd_pstate_verify(struct cpufreq_policy_data *policy)