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cpuidle: Clean up cpuidle_enable_device() error handling a bit

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Do not fetch per CPU drv if cpuidle_curr_governor is NULL
to avoid useless per CPU processing.

Signed-off-by: Gaurav Jindal <gauravjindal1104@gmail.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Gaurav Jindal 2017-09-01 20:37:26 +05:30 committed by Rafael J. Wysocki
parent c523c68da2
commit e7b06a09e7
1 changed files with 4 additions and 1 deletions
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5
drivers/cpuidle/cpuidle.c
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@ -388,9 +388,12 @@ 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)