[CPUFREQ] Check whether driver init did not initialize current freq

Check whether driver init did not initialize current freq
Signed-off-by: NThomas Renninger <trenn@suse.de>
Signed-off-by: NDave Jones <davej@redhat.com>

drivers/cpufreq/cpufreq.c

@@ -1442,8 +1442,13 @@ int cpufreq_update_policy(unsigned int cpu)
 	  -> ask driver for current freq and notify governors about a change */
 	if (cpufreq_driver->get) {
 		policy.cur = cpufreq_driver->get(cpu);
-		if (data->cur != policy.cur)
-			cpufreq_out_of_sync(cpu, data->cur, policy.cur);
+		if (!data->cur) {
+			dprintk("Driver did not initialize current freq");
+			data->cur = policy.cur;
+		} else {
+			if (data->cur != policy.cur)
+				cpufreq_out_of_sync(cpu, data->cur, policy.cur);
+		}
 	}
 
 	ret = __cpufreq_set_policy(data, &policy);