From: Thomas Renninger <trenn@suse.de>
Date: Wed, 1 Feb 2006 10:36:04 +0000 (+0100)
Subject: [CPUFREQ] Check whether driver init did not initialize current freq
X-Git-Tag: firefly_0821_release~38049^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a85f7bd310dbc9010309bfe70b6b02432a11ef59;p=firefly-linux-kernel-4.4.55.git

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

Check whether driver init did not initialize current freq

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>
---

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 6bbe5825765a..35eafbcf5ad5 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/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);