5.4-stable review patch. If anyone has any objections, please let me know.
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From: Lifeng Zheng zhenglifeng1@huawei.com
[ Upstream commit 0ae204405095abfbc2d694ee0fbb49bcbbe55c57 ]
Detect the result of starting old governor in cpufreq_set_policy(). If it fails, exit the governor and clear policy->governor.
Signed-off-by: Lifeng Zheng zhenglifeng1@huawei.com Link: https://patch.msgid.link/20250709104145.2348017-5-zhenglifeng1@huawei.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/cpufreq/cpufreq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 00f12d23077c..0f8777343e21 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2483,10 +2483,12 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, pr_debug("starting governor %s failed\n", policy->governor->name); if (old_gov) { policy->governor = old_gov; - if (cpufreq_init_governor(policy)) + if (cpufreq_init_governor(policy)) { policy->governor = NULL; - else - cpufreq_start_governor(policy); + } else if (cpufreq_start_governor(policy)) { + cpufreq_exit_governor(policy); + policy->governor = NULL; + } }
return ret;