[PATCH] PR15789/gettimeofday: do not bail out if cpufreq_register_notifier fails

[Timo Juhani Lindfors <timo.lindfors@iki.fi>]

Linux commit d5aaffa9dd531c978c6f3fea06a2972653bd7fc8 (cpufreq: handle
cpufreq being disabled for all exported function.) causes
cpufreq_register_notifier to fail if cpufreq gets disabled at
runtime. This patch simply ignores the failure of
cpufreq_register_notifier so that gettimeofday can continue to work.
Once cpufreq is disabled it can not be enabled at runtime so this
should be safe.
---
 runtime/time.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/runtime/time.c b/runtime/time.c
index 34df72a..a01d922 100644
--- a/runtime/time.c
+++ b/runtime/time.c
@@ -253,10 +253,8 @@ _stp_init_time(void)
 
 #ifdef CONFIG_CPU_FREQ
     if (!ret && !__stp_constant_freq()) {
-        ret = cpufreq_register_notifier(&__stp_time_notifier,
-                CPUFREQ_TRANSITION_NOTIFIER);
-
-        if (!ret) {
+        if (!cpufreq_register_notifier(&__stp_time_notifier,
+                                       CPUFREQ_TRANSITION_NOTIFIER)) {
             for_each_online_cpu(cpu) {
                 unsigned long flags;
                 int freq_khz = cpufreq_get(cpu);
-- 
1.7.2.5