lkml.org 
[lkml]   [2017]   [Sep]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] cpudile: optimize cpuidle_enable_device error handling
do not fetch per cpu drv id cpuidle_curr_governor is NULL.
if cpuidle_enable_device is NULL return -EIO. it prevents
the addtional per cpu processing

Signed-off-by: Gaurav Jindal<gauravjindal1104@gmail.com>

---

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 1519716..6464e09 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -367,9 +367,12 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
if (dev->enabled)
return 0;

+ if (!cpuidle_curr_governor)
+ return -EIO;
+
drv = cpuidle_get_cpu_driver(dev);

- if (!drv || !cpuidle_curr_governor)
+ if (!drv)
return -EIO;

if (!dev->registered)
\
 
 \ /
  Last update: 2017-09-01 17:08    [W:0.025 / U:0.680 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site