staging:iio: iio_event_interfaces - clean out unused elements
Also removed const casting of _name that was unnecessary.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/iio/chrdev.h b/drivers/staging/iio/chrdev.h
index 10491f0..6523273 100644
--- a/drivers/staging/iio/chrdev.h
+++ b/drivers/staging/iio/chrdev.h
@@ -60,24 +60,18 @@
* @det_events: list of detected events
* @max_events: maximum number of events before new ones are dropped
* @current_events: number of events in detected list
- * @owner: ensure the driver module owns the file, not iio
- * @private: driver specific data
* @_name: used internally to store the sysfs name for minor id
* attribute
- * @_attrname: the event interface's attribute name
*/
struct iio_event_interface {
struct device dev;
struct iio_handler handler;
wait_queue_head_t wait;
struct mutex event_list_lock;
- struct iio_detected_event_list det_events;
+ struct list_head det_events;
int max_events;
int current_events;
- struct module *owner;
- void *private;
char _name[35];
- char _attrname[20];
struct list_head dev_attr_list;
};
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index 49560e4..b5b658c 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -112,7 +112,7 @@
ev->ev.id = ev_code;
ev->ev.timestamp = timestamp;
- list_add_tail(&ev->list, &ev_int->det_events.list);
+ list_add_tail(&ev->list, &ev_int->det_events);
ev_int->current_events++;
mutex_unlock(&ev_int->event_list_lock);
wake_up_interruptible(&ev_int->wait);
@@ -146,7 +146,7 @@
size_t len;
mutex_lock(&ev_int->event_list_lock);
- if (list_empty(&ev_int->det_events.list)) {
+ if (list_empty(&ev_int->det_events)) {
if (filep->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
goto error_mutex_unlock;
@@ -155,14 +155,14 @@
/* Blocking on device; waiting for something to be there */
ret = wait_event_interruptible(ev_int->wait,
!list_empty(&ev_int
- ->det_events.list));
+ ->det_events));
if (ret)
goto error_ret;
/* Single access device so no one else can get the data */
mutex_lock(&ev_int->event_list_lock);
}
- el = list_first_entry(&ev_int->det_events.list,
+ el = list_first_entry(&ev_int->det_events,
struct iio_detected_event_list,
list);
len = sizeof el->ev;
@@ -197,7 +197,7 @@
* clear out any awaiting events. The mask will prevent
* any new __iio_push_event calls running.
*/
- list_for_each_entry_safe(el, t, &ev_int->det_events.list, list) {
+ list_for_each_entry_safe(el, t, &ev_int->det_events, list) {
list_del(&el->list);
kfree(el);
}
@@ -300,7 +300,7 @@
/* discussion point - make this variable? */
ev_int->max_events = 10;
ev_int->current_events = 0;
- INIT_LIST_HEAD(&ev_int->det_events.list);
+ INIT_LIST_HEAD(&ev_int->det_events);
init_waitqueue_head(&ev_int->wait);
ev_int->handler.private = ev_int;
ev_int->handler.flags = 0;
@@ -1041,17 +1041,13 @@
}
for (i = 0; i < dev_info->num_interrupt_lines; i++) {
- dev_info->event_interfaces[i].owner = dev_info->driver_module;
-
snprintf(dev_info->event_interfaces[i]._name, 20,
"%s:event%d",
dev_name(&dev_info->dev),
i);
ret = iio_setup_ev_int(&dev_info->event_interfaces[i],
- (const char *)(dev_info
- ->event_interfaces[i]
- ._name),
+ dev_info->event_interfaces[i]._name,
dev_info->driver_module,
&dev_info->dev);
if (ret) {