From: Chanwoo Choi <cw00.choi@samsung.com>
To: myungjoo.ham@samsung.com
Cc: kyungmin.park@samsung.com, hl@rock-chips.com,
rafael.j.wysocki@intel.com, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org, Chanwoo Choi <cw00.choi@samsung.com>
Subject: [PATCH] PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed
Date: Thu, 23 Jun 2016 11:18:43 +0900 [thread overview]
Message-ID: <1466648323-776-1-git-send-email-cw00.choi@samsung.com> (raw)
This patch sends the DEVFREQ_POSTCHANGE notification when
devfreq->profile->targer() is failed. The PRECHANGE/POSTCHANGE
should be paired.
Fixes: 0fe3a66410a3 ("PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier")
Reported-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
drivers/devfreq/devfreq.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 1d6c803804d5..387799fec4c3 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -268,8 +268,11 @@ int update_devfreq(struct devfreq *devfreq)
devfreq_notify_transition(devfreq, &freqs, DEVFREQ_PRECHANGE);
err = devfreq->profile->target(devfreq->dev.parent, &freq, flags);
- if (err)
+ if (err) {
+ freqs.new = cur_freq;
+ devfreq_notify_transition(devfreq, &freqs, DEVFREQ_POSTCHANGE);
return err;
+ }
freqs.new = freq;
devfreq_notify_transition(devfreq, &freqs, DEVFREQ_POSTCHANGE);
--
1.9.1
next reply other threads:[~2016-06-23 2:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-23 2:18 Chanwoo Choi [this message]
2016-06-23 13:40 ` [PATCH] PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed Rafael J. Wysocki
2016-06-23 14:24 ` Chanwoo Choi
[not found] ` <CGME20160623142439epcas1p445e53890a3f909f08de100dfedb9bd04@epcas1p4.samsung.com>
2016-06-24 0:28 ` MyungJoo Ham
2016-06-24 13:39 ` Rafael J. Wysocki
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