diff options
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r-- | drivers/cpufreq/cpufreq.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 0e626b00053b..e10922709d13 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c | |||
@@ -206,17 +206,15 @@ unsigned int cpufreq_generic_get(unsigned int cpu) | |||
206 | EXPORT_SYMBOL_GPL(cpufreq_generic_get); | 206 | EXPORT_SYMBOL_GPL(cpufreq_generic_get); |
207 | 207 | ||
208 | /** | 208 | /** |
209 | * cpufreq_cpu_get: returns policy for a cpu and marks it busy. | 209 | * cpufreq_cpu_get - Return policy for a CPU and mark it as busy. |
210 | * @cpu: CPU to find the policy for. | ||
210 | * | 211 | * |
211 | * @cpu: cpu to find policy for. | 212 | * Call cpufreq_cpu_get_raw() to obtain a cpufreq policy for @cpu and increment |
213 | * the kobject reference counter of that policy. Return a valid policy on | ||
214 | * success or NULL on failure. | ||
212 | * | 215 | * |
213 | * This returns policy for 'cpu', returns NULL if it doesn't exist. | 216 | * The policy returned by this function has to be released with the help of |
214 | * It also increments the kobject reference count to mark it busy and so would | 217 | * cpufreq_cpu_put() to balance its kobject reference counter properly. |
215 | * require a corresponding call to cpufreq_cpu_put() to decrement it back. | ||
216 | * If corresponding call cpufreq_cpu_put() isn't made, the policy wouldn't be | ||
217 | * freed as that depends on the kobj count. | ||
218 | * | ||
219 | * Return: A valid policy on success, otherwise NULL on failure. | ||
220 | */ | 218 | */ |
221 | struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu) | 219 | struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu) |
222 | { | 220 | { |
@@ -243,12 +241,8 @@ struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu) | |||
243 | EXPORT_SYMBOL_GPL(cpufreq_cpu_get); | 241 | EXPORT_SYMBOL_GPL(cpufreq_cpu_get); |
244 | 242 | ||
245 | /** | 243 | /** |
246 | * cpufreq_cpu_put: Decrements the usage count of a policy | 244 | * cpufreq_cpu_put - Decrement kobject usage counter for cpufreq policy. |
247 | * | 245 | * @policy: cpufreq policy returned by cpufreq_cpu_get(). |
248 | * @policy: policy earlier returned by cpufreq_cpu_get(). | ||
249 | * | ||
250 | * This decrements the kobject reference count incremented earlier by calling | ||
251 | * cpufreq_cpu_get(). | ||
252 | */ | 246 | */ |
253 | void cpufreq_cpu_put(struct cpufreq_policy *policy) | 247 | void cpufreq_cpu_put(struct cpufreq_policy *policy) |
254 | { | 248 | { |