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cpuidle: use the driver's state_count as default

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If the state_count is not initialized for the device use
the driver's state count as the default. That will prevent
to add it manually in the cpuidle driver initialization
routine and will save us from duplicate line of code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Daniel Lezcano 2012-03-26 14:51:26 +02:00 committed by Len Brown
parent 3a53396b03
commit fc850f39ea
2 changed files with 2 additions and 2 deletions
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2
drivers/cpuidle/cpuidle.c
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@ -268,7 +268,7 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
if (!drv || !cpuidle_curr_governor)
return -EIO;
if (!dev->state_count)
return -EINVAL;
dev->state_count = drv->state_count;
if (dev->registered == 0) {
ret = __cpuidle_register_device(dev);

2
drivers/cpuidle/driver.c
View File

@ -47,7 +47,7 @@ static void __cpuidle_register_driver(struct cpuidle_driver *drv)
*/
int cpuidle_register_driver(struct cpuidle_driver *drv)
{
if (!drv)
if (!drv || !drv->state_count)
return -EINVAL;
if (cpuidle_disabled())