cpufreq: Use sizeof(*ptr) convetion for computing sizes

Chapter 14 of Documentation/CodingStyle says:

The preferred form for passing a size of a struct is the following:

	p = kmalloc(sizeof(*p), ...);

The alternative form where struct name is spelled out hurts
readability and introduces an opportunity for a bug when the pointer
variable type is changed but the corresponding sizeof that is passed
to a memory allocator is not.

This wasn't followed consistently in drivers/cpufreq, let's make it
more consistent by always following this rule.

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

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1793fe8..9e83d91 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -873,7 +873,7 @@ static void cpufreq_init_policy(struct cpufreq_policy *policy)
 	struct cpufreq_policy new_policy;
 	int ret = 0;
 
-	memcpy(&new_policy, policy, sizeof(struct cpufreq_policy));
+	memcpy(&new_policy, policy, sizeof(*policy));
 	/* assure that the starting sequence is run in __cpufreq_set_policy */
 	policy->governor = NULL;
 
@@ -1818,7 +1818,7 @@ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu)
 	if (!cpu_policy)
 		return -EINVAL;
 
-	memcpy(policy, cpu_policy, sizeof(struct cpufreq_policy));
+	memcpy(policy, cpu_policy, sizeof(*policy));
 
 	cpufreq_cpu_put(cpu_policy);
 	return 0;
@@ -1837,8 +1837,7 @@ static int __cpufreq_set_policy(struct cpufreq_policy *policy,
 	pr_debug("setting new policy for CPU %u: %u - %u kHz\n", new_policy->cpu,
 		new_policy->min, new_policy->max);
 
-	memcpy(&new_policy->cpuinfo, &policy->cpuinfo,
-				sizeof(struct cpufreq_cpuinfo));
+	memcpy(&new_policy->cpuinfo, &policy->cpuinfo, sizeof(policy->cpuinfo));
 
 	if (new_policy->min > policy->max || new_policy->max < policy->min) {
 		ret = -EINVAL;
@@ -1957,7 +1956,7 @@ int cpufreq_update_policy(unsigned int cpu)
 	}
 
 	pr_debug("updating policy for CPU %u\n", cpu);
-	memcpy(&new_policy, policy, sizeof(struct cpufreq_policy));
+	memcpy(&new_policy, policy, sizeof(*policy));
 	new_policy.min = policy->user_policy.min;
 	new_policy.max = policy->user_policy.max;
 	new_policy.policy = policy->user_policy.policy;