cpufreq: Use signed type for 'ret' variable, to store negative error values

There are places where the variable 'ret' is declared as unsigned int
and then used to store negative return values such as -EINVAL. Fix them
by declaring the variable as a signed quantity.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.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 2863214c5381a7c7f5dbf9c2eb97a3a7d8552976..73d53d5a16eee91b94bdc6ca75efae32f13db161 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -437,7 +437,7 @@ static int __cpufreq_set_policy(struct cpufreq_policy *policy,
 static ssize_t store_##file_name                                       \
 (struct cpufreq_policy *policy, const char *buf, size_t count)         \
 {                                                                      \
-       unsigned int ret;                                               \
+       int ret;                                                        \
        struct cpufreq_policy new_policy;                               \
                                                                        \
        ret = cpufreq_get_policy(&new_policy, policy->cpu);             \
@@ -490,7 +490,7 @@ static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf)
 static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
                                        const char *buf, size_t count)
 {
-       unsigned int ret;
+       int ret;
        char    str_governor[16];
        struct cpufreq_policy new_policy;