On 2019-03-12 12:47, MyungJoo Ham wrote:
From: Saravana Kannan <[email protected]>
If the new governor fails to start, switch back to old governor so
that the
devfreq state is not left in some weird limbo.
[Mjungjoo: assume fatal on revert failure and set df->governor to
NULL]
Signed-off-by: Sibi Sankar <[email protected]>
Signed-off-by: Saravana Kannan <[email protected]>
Reviewed-by: Chanwoo Choi <[email protected]>
I'll modify WARN->ERROR for the case when it's fatal:
Sure, thanks.
+ if (ret) {
+ dev_warn(dev,
+ "%s: reverting to Governor %s failed (%d)\n",
+ __func__, df->governor_name, ret);
+ df->governor = NULL;
+ }
Acked-by: MyungJoo Ham <[email protected]>
---
V5:
* assume fatal on revert failure and set df->governor to NULL
V4:
* Removed prev_governor check.
V3:
* Fix NULL deref for real this time.
* Addressed some style preferences.
V2:
* Fixed typo in commit text
* Fixed potential NULL deref
drivers/devfreq/devfreq.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
--
-- Sibi Sankar --
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.
