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Date: Tue, 3 Jul 2012 17:08:34 +0800 From: Xiaoguang Chen <chenxg@...vell.com> To: linux-kernel@...r.kernel.org Cc: myungjoo.ham@...sung.com, kyungmin.park@...sung.com, mturquette@...com, axel.lin@...il.com, Xiaoguang Chen <chenxg@...vell.com> Subject: [PATCH] PM: Devfreq: fix userspace governor frequency bug The frequency set by userspace governor may not the same as the final frequency. If this condition happens, then "cat set_freq" will return a wrong value which is inconsistant with the real frequency. This patch updates data->user_frequency after calling of update_devfreq. use devfreq->revious_freq as the final user_frequency. Signed-off-by: Xiaoguang Chen <chenxg@...vell.com> --- drivers/devfreq/governor_userspace.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/devfreq/governor_userspace.c b/drivers/devfreq/governor_userspace.c index 0681246..85ad80a 100644 --- a/drivers/devfreq/governor_userspace.c +++ b/drivers/devfreq/governor_userspace.c @@ -59,6 +59,7 @@ static ssize_t store_freq(struct device *dev, struct device_attribute *attr, err = update_devfreq(devfreq); if (err == 0) err = count; + data->user_frequency = devfreq->previous_freq; mutex_unlock(&devfreq->lock); return err; } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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