cpufreq: Use int type to store negative error codes

Change the 'ret' variable in store_scaling_setspeed() from unsigned int to
int, as it needs to store either negative error codes or zero returned
by kstrtouint().

No effect on runtime.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/20250902114545.651661-2-rongqianfeng@vivo.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 5fcc99f768d2ee97de8ace3d4d33d560f96d9bb5..6812afdf0dbfff8daae36d6ae84d356c5ad9feee 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -914,7 +914,7 @@ static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy,
                                        const char *buf, size_t count)
 {
        unsigned int freq = 0;
-       unsigned int ret;
+       int ret;
 
        if (!policy->governor || !policy->governor->store_setspeed)
                return -EINVAL;