From: Xuewen Yan xuewen.yan@unisoc.com
[ Upstream commit cff895277c8558221ba180aefe26799dcb4eec86 ]
Since the policy needs to be accessed first when obtaining cpu devices, first check whether the policy is legal before this.
Fixes: 5130802ddbb1 ("thermal: cpu_cooling: Switch to QoS requests for freq limits") Signed-off-by: Xuewen Yan xuewen.yan@unisoc.com Acked-by: Viresh Kumar viresh.kumar@linaro.org Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/thermal/cpufreq_cooling.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c index b76293cc989c..7838b6e2dba5 100644 --- a/drivers/thermal/cpufreq_cooling.c +++ b/drivers/thermal/cpufreq_cooling.c @@ -501,17 +501,17 @@ __cpufreq_cooling_register(struct device_node *np, struct thermal_cooling_device_ops *cooling_ops; char *name;
+ if (IS_ERR_OR_NULL(policy)) { + pr_err("%s: cpufreq policy isn't valid: %p\n", __func__, policy); + return ERR_PTR(-EINVAL); + } + dev = get_cpu_device(policy->cpu); if (unlikely(!dev)) { pr_warn("No cpu device for cpu %d\n", policy->cpu); return ERR_PTR(-ENODEV); }
- if (IS_ERR_OR_NULL(policy)) { - pr_err("%s: cpufreq policy isn't valid: %p\n", __func__, policy); - return ERR_PTR(-EINVAL); - } - i = cpufreq_table_count_valid_entries(policy); if (!i) { pr_debug("%s: CPUFreq table not found or has no valid entries\n",