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. Cc: Dave Jones <davej@xxxxxxxxxx> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx> --- drivers/cpufreq/pcc-cpufreq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c index 0de0008..1581fcc4 100644 --- a/drivers/cpufreq/pcc-cpufreq.c +++ b/drivers/cpufreq/pcc-cpufreq.c @@ -243,6 +243,8 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy, return 0; cmd_incomplete: + freqs.new = freqs.old; + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); iowrite16(0, &pcch_hdr->status); spin_unlock(&pcc_lock); return -EINVAL; -- 1.7.12.rc2.18.g61b472e -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
