Commit 5207fb2f authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Greg Kroah-Hartman
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counter: Provide a wrapper to access device private data 



For now this just wraps accessing struct counter_device::priv. However
this is about to change and converting drivers to this helper
individually makes fixing device lifetime issues result in easier to
review patches.

Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: default avatarWilliam Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211230150300.72196-5-u.kleine-koenig@pengutronix.de


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0880603c

drivers/counter/counter-core.c

+12 −0
Original line number Diff line number Diff line
@@ -45,6 +45,18 @@ static struct bus_type counter_bus_type = { 


static dev_t counter_devt;



/**

 * counter_priv - access counter device private data

 * @counter: counter device

 *

 * Get the counter device private data

 */

void *counter_priv(const struct counter_device *const counter)

{

	return counter->priv;

}

EXPORT_SYMBOL_GPL(counter_priv);



/**

 * counter_register - register Counter to the system

 * @counter:	pointer to Counter to register

include/linux/counter.h

+2 −0
Original line number Diff line number Diff line
@@ -329,6 +329,8 @@ struct counter_device { 
	struct mutex ops_exist_lock;

};



void *counter_priv(const struct counter_device *const counter);



int counter_register(struct counter_device *const counter);

void counter_unregister(struct counter_device *const counter);

int devm_counter_register(struct device *dev,