Thread (2 messages) 2 messages, 1 author, 2014-03-04

[PATCH] PM / devfreq: Rewrite devfreq_update_status() to fix multiple bugs

From: Saravana Kannan <hidden>
Date: 2014-03-04 00:35:56
Also in: linux-arm-msm, linux-pm, lkml

On 02/27/2014 07:38 PM, Saravana Kannan wrote:
The current devfreq_update_status() has the following bugs:
- If previous frequency doesn't have a valid level, it does an out of bounds
   access into the trans_table and causes memory corruption.
- When the new frequency doesn't have a valid level, the time spent in the
   new frequency is counted towards the next valid frequency switch instead of
   being ignored.
- The time spent on the previous frequency is added to the new frequency's
   stats instead of the previous frequency's stats.

This patch fixes all of this.

Signed-off-by: Saravana Kannan <redacted>
---
MyungJoo/Kyungmin,

Can you please take a look and let me know if this looks ok? Any 
possibility of getting this into 3.14?

Thanks,
Saravana

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