diff options
| author | Saravana Kannan <skannan@codeaurora.org> | 2014-02-27 19:38:57 -0800 |
|---|---|---|
| committer | MyungJoo Ham <myungjoo.ham@samsung.com> | 2014-03-21 11:16:30 +0900 |
| commit | e35d35a1c0b3a7317d77e03e686a4a205cdd4eed (patch) | |
| tree | 13bfac6f86fcc9fb5e40315d7e4a115f05e88bc5 /drivers/ata/pata_sc1200.c | |
| parent | dcb99fd9b08cfe1afe426af4d8d3cbc429190f15 (diff) | |
| download | linux-next-e35d35a1c0b3a7317d77e03e686a4a205cdd4eed.tar.gz | |
PM / devfreq: Rewrite devfreq_update_status() to fix multiple bugs
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 <skannan@codeaurora.org>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/ata/pata_sc1200.c')
0 files changed, 0 insertions, 0 deletions