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authorViresh Kumar <viresh.kumar@linaro.org>2013-06-19 11:18:20 +0530
committerViresh Kumar <viresh.kumar@linaro.org>2013-06-24 18:18:58 +0530
commit3d69dd50517f4a1c037298ac4af85aae1d070879 (patch)
tree1fd9b8d09b71c2281edb7a9f611ae1b86a858059
parent9e895ace5d82df8929b16f58e9f515f6d54ab82d (diff)
downloadleg-kernel-3d69dd50517f4a1c037298ac4af85aae1d070879.tar.gz
cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases
PRECHANGE and POSTCHANGE notifiers must be called in groups, i.e either both should be called or both shouldn't be. In case we have started PRECHANGE notifier and found an error, we must call POSTCHANGE notifier with freqs.new = freqs.old to guarantee that sequence of calling notifiers is complete. This patch fixes it. This also removes code setting policy->cur as this is also done by POSTCHANGE notifier. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
-rw-r--r--drivers/cpufreq/arm_big_little.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 5d7f53fcd6f5..3549f0784af1 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -84,11 +84,9 @@ static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000);
if (ret) {
pr_err("clk_set_rate failed: %d\n", ret);
- return ret;
+ freqs.new = freqs.old;
}
- policy->cur = freqs.new;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;