cpufreq: schedutil: Simplify sugov_fast_switch()

Drop a redundant local variable definition from sugov_fast_switch()
and rearrange the code in there to avoid the redundant logical
negation.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

kernel/sched/cpufreq_schedutil.c

@@ -114,12 +114,8 @@ static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
 static void sugov_fast_switch(struct sugov_policy *sg_policy, u64 time,
 			      unsigned int next_freq)
 {
-	struct cpufreq_policy *policy = sg_policy->policy;
-
-	if (!sugov_update_next_freq(sg_policy, time, next_freq))
-		return;
-
-	cpufreq_driver_fast_switch(policy, next_freq);
+	if (sugov_update_next_freq(sg_policy, time, next_freq))
+		cpufreq_driver_fast_switch(sg_policy->policy, next_freq);
 }
 
 static void sugov_deferred_update(struct sugov_policy *sg_policy, u64 time,