[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>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 6bbe5825765..35eafbcf5ad 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);