From: Viresh Kumar Date: Wed, 19 Jun 2013 08:53:04 +0000 (+0530) Subject: cpufreq: powernow-k8: call CPUFREQ_POSTCHANGE notfier in error cases X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7f77a563f0c110a633b4ab0fec9f49d41630039a;p=deliverable%2Flinux.git cpufreq: powernow-k8: 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. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 51343a128703..78f018f2a5de 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -967,9 +967,9 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, res = transition_fid_vid(data, fid, vid); if (res) - return res; - - freqs.new = find_khz_freq_from_fid(data->currfid); + freqs.new = freqs.old; + else + freqs.new = find_khz_freq_from_fid(data->currfid); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); return res;