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staging:iio:triggers Remove unecessary existence checks and return val 

Postenable and predisable are called via buffer->ops so  don't
need to check if buffer exists.

The return value of iio_device_register_trigger_consumer is
always zero and it isn't checked anyway so get rid of it.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron 2011-10-26 17:27:38 +01:00 committed by Greg Kroah-Hartman
parent 22dc09cafd
commit 67be8e32c9
2 changed files with 6 additions and 13 deletions
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3
drivers/staging/iio/iio_core_trigger.h
View File

@ -13,8 +13,7 @@
* iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
* @indio_dev: iio_dev associated with the device that will consume the trigger
**/
int iio_device_register_trigger_consumer(struct iio_dev *indio_dev);
void iio_device_register_trigger_consumer(struct iio_dev *indio_dev);
/**
* iio_device_unregister_trigger_consumer() - reverse the registration process

16
drivers/staging/iio/industrialio-trigger.c
View File

@ -473,12 +473,10 @@ void iio_free_trigger(struct iio_trigger *trig)
}
EXPORT_SYMBOL(iio_free_trigger);
int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
void iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
{
indio_dev->groups[indio_dev->groupcounter++] =
&iio_trigger_consumer_attr_group;
return 0;
}
void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
@ -490,18 +488,14 @@ void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
int iio_triggered_buffer_postenable(struct iio_dev *indio_dev)
{
return indio_dev->trig
? iio_trigger_attach_poll_func(indio_dev->trig,
indio_dev->pollfunc)
: 0;
return iio_trigger_attach_poll_func(indio_dev->trig,
indio_dev->pollfunc);
}
EXPORT_SYMBOL(iio_triggered_buffer_postenable);
int iio_triggered_buffer_predisable(struct iio_dev *indio_dev)
{
return indio_dev->trig
? iio_trigger_dettach_poll_func(indio_dev->trig,
indio_dev->pollfunc)
: 0;
return iio_trigger_dettach_poll_func(indio_dev->trig,
indio_dev->pollfunc);
}
EXPORT_SYMBOL(iio_triggered_buffer_predisable);