cpufreq: Make cpufreq_generic_init() return void

It always returns 0 (success) and its return type should really be void.

Over that, many drivers have added error handling code based on its
return value, which is not required at all.

Change its return type to void and update all the callers.

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

drivers/cpufreq/pasemi-cpufreq.c

@@ -196,7 +196,8 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	policy->cur = pas_freqs[cur_astate].frequency;
 	ppc_proc_freq = policy->cur * 1000ul;
 
-	return cpufreq_generic_init(policy, pas_freqs, get_gizmo_latency());
+	cpufreq_generic_init(policy, pas_freqs, get_gizmo_latency());
+	return 0;
 
 out_unmap_sdcpwr:
 	iounmap(sdcpwr_mapbase);