cpufreq: blackfin: call cpufreq_frequency_table_put_attr()

Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if
they have called cpufreq_frequency_table_get_attr() in their init path.

This driver was missing this part and is fixed with this patch.

Cc: Steven Miao <realmz6@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 54c0a0c20752..0e76c09552b9 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -213,6 +213,13 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy)
         return cpufreq_table_validate_and_show(policy, bfin_freq_table);
 }
 
+static int __bfin_cpu_exit(struct cpufreq_policy *policy)
+{
+
+        cpufreq_frequency_table_put_attr(policy->cpu);
+        return 0;
+}
+
 static struct freq_attr *bfin_freq_attr[] = {
         &cpufreq_freq_attr_scaling_available_freqs,
         NULL,
@@ -223,6 +230,7 @@ static struct cpufreq_driver bfin_driver = {
         .target = bfin_target,
         .get = bfin_getfreq_khz,
         .init = __bfin_cpu_init,
+        .exit = __bfin_cpu_exit,
         .name = "bfin cpufreq",
         .attr = bfin_freq_attr,
 };