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path: root/drivers/input/serio/serio.c
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Diffstat (limited to 'drivers/input/serio/serio.c')
-rw-r--r--drivers/input/serio/serio.c131
1 files changed, 56 insertions, 75 deletions
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index e0f30186d51..c3b626e9eae 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -26,6 +26,8 @@
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/stddef.h>
#include <linux/module.h>
#include <linux/serio.h>
@@ -119,11 +121,10 @@ static int serio_bind_driver(struct serio *serio, struct serio_driver *drv)
error = device_bind_driver(&serio->dev);
if (error) {
- printk(KERN_WARNING
- "serio: device_bind_driver() failed "
- "for %s (%s) and %s, error: %d\n",
- serio->phys, serio->name,
- drv->description, error);
+ dev_warn(&serio->dev,
+ "device_bind_driver() failed for %s (%s) and %s, error: %d\n",
+ serio->phys, serio->name,
+ drv->description, error);
serio_disconnect_driver(serio);
serio->dev.driver = NULL;
return error;
@@ -138,9 +139,9 @@ static void serio_find_driver(struct serio *serio)
error = device_attach(&serio->dev);
if (error < 0)
- printk(KERN_WARNING
- "serio: device_attach() failed for %s (%s), error: %d\n",
- serio->phys, serio->name, error);
+ dev_warn(&serio->dev,
+ "device_attach() failed for %s (%s), error: %d\n",
+ serio->phys, serio->name, error);
}
@@ -194,17 +195,14 @@ static int serio_queue_event(void *object, struct module *owner,
event = kmalloc(sizeof(struct serio_event), GFP_ATOMIC);
if (!event) {
- printk(KERN_ERR
- "serio: Not enough memory to queue event %d\n",
- event_type);
+ pr_err("Not enough memory to queue event %d\n", event_type);
retval = -ENOMEM;
goto out;
}
if (!try_module_get(owner)) {
- printk(KERN_WARNING
- "serio: Can't get module reference, dropping event %d\n",
- event_type);
+ pr_warning("Can't get module reference, dropping event %d\n",
+ event_type);
kfree(event);
retval = -EINVAL;
goto out;
@@ -230,14 +228,12 @@ static void serio_free_event(struct serio_event *event)
static void serio_remove_duplicate_events(struct serio_event *event)
{
- struct list_head *node, *next;
- struct serio_event *e;
+ struct serio_event *e, *next;
unsigned long flags;
spin_lock_irqsave(&serio_event_lock, flags);
- list_for_each_safe(node, next, &serio_event_list) {
- e = list_entry(node, struct serio_event, node);
+ list_for_each_entry_safe(e, next, &serio_event_list, node) {
if (event->object == e->object) {
/*
* If this event is of different type we should not
@@ -247,7 +243,7 @@ static void serio_remove_duplicate_events(struct serio_event *event)
if (event->type != e->type)
break;
- list_del_init(node);
+ list_del_init(&e->node);
serio_free_event(e);
}
}
@@ -258,23 +254,18 @@ static void serio_remove_duplicate_events(struct serio_event *event)
static struct serio_event *serio_get_event(void)
{
- struct serio_event *event;
- struct list_head *node;
+ struct serio_event *event = NULL;
unsigned long flags;
spin_lock_irqsave(&serio_event_lock, flags);
- if (list_empty(&serio_event_list)) {
- spin_unlock_irqrestore(&serio_event_lock, flags);
- return NULL;
+ if (!list_empty(&serio_event_list)) {
+ event = list_first_entry(&serio_event_list,
+ struct serio_event, node);
+ list_del_init(&event->node);
}
- node = serio_event_list.next;
- event = list_entry(node, struct serio_event, node);
- list_del_init(node);
-
spin_unlock_irqrestore(&serio_event_lock, flags);
-
return event;
}
@@ -287,29 +278,27 @@ static void serio_handle_event(void)
while ((event = serio_get_event())) {
switch (event->type) {
- case SERIO_REGISTER_PORT:
- serio_add_port(event->object);
- break;
- case SERIO_RECONNECT_PORT:
- serio_reconnect_port(event->object);
- break;
+ case SERIO_REGISTER_PORT:
+ serio_add_port(event->object);
+ break;
- case SERIO_RESCAN_PORT:
- serio_disconnect_port(event->object);
- serio_find_driver(event->object);
- break;
+ case SERIO_RECONNECT_PORT:
+ serio_reconnect_port(event->object);
+ break;
- case SERIO_RECONNECT_CHAIN:
- serio_reconnect_chain(event->object);
- break;
+ case SERIO_RESCAN_PORT:
+ serio_disconnect_port(event->object);
+ serio_find_driver(event->object);
+ break;
- case SERIO_ATTACH_DRIVER:
- serio_attach_driver(event->object);
- break;
+ case SERIO_RECONNECT_CHAIN:
+ serio_reconnect_chain(event->object);
+ break;
- default:
- break;
+ case SERIO_ATTACH_DRIVER:
+ serio_attach_driver(event->object);
+ break;
}
serio_remove_duplicate_events(event);
@@ -325,16 +314,14 @@ static void serio_handle_event(void)
*/
static void serio_remove_pending_events(void *object)
{
- struct list_head *node, *next;
- struct serio_event *event;
+ struct serio_event *event, *next;
unsigned long flags;
spin_lock_irqsave(&serio_event_lock, flags);
- list_for_each_safe(node, next, &serio_event_list) {
- event = list_entry(node, struct serio_event, node);
+ list_for_each_entry_safe(event, next, &serio_event_list, node) {
if (event->object == object) {
- list_del_init(node);
+ list_del_init(&event->node);
serio_free_event(event);
}
}
@@ -380,7 +367,6 @@ static int serio_thread(void *nothing)
kthread_should_stop() || !list_empty(&serio_event_list));
} while (!kthread_should_stop());
- printk(KERN_DEBUG "serio: kseriod exiting\n");
return 0;
}
@@ -445,6 +431,11 @@ static struct attribute_group serio_id_attr_group = {
.attrs = serio_device_id_attrs,
};
+static const struct attribute_group *serio_device_attr_groups[] = {
+ &serio_id_attr_group,
+ NULL
+};
+
static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct serio *serio = to_serio_port(dev);
@@ -532,6 +523,7 @@ static void serio_init_port(struct serio *serio)
(long)atomic_inc_return(&serio_no) - 1);
serio->dev.bus = &serio_bus;
serio->dev.release = serio_release_port;
+ serio->dev.groups = serio_device_attr_groups;
if (serio->parent) {
serio->dev.parent = &serio->parent->dev;
serio->depth = serio->parent->depth + 1;
@@ -555,21 +547,15 @@ static void serio_add_port(struct serio *serio)
}
list_add_tail(&serio->node, &serio_list);
+
if (serio->start)
serio->start(serio);
+
error = device_add(&serio->dev);
if (error)
- printk(KERN_ERR
- "serio: device_add() failed for %s (%s), error: %d\n",
+ dev_err(&serio->dev,
+ "device_add() failed for %s (%s), error: %d\n",
serio->phys, serio->name, error);
- else {
- serio->registered = true;
- error = sysfs_create_group(&serio->dev.kobj, &serio_id_attr_group);
- if (error)
- printk(KERN_ERR
- "serio: sysfs_create_group() failed for %s (%s), error: %d\n",
- serio->phys, serio->name, error);
- }
}
/*
@@ -596,11 +582,8 @@ static void serio_destroy_port(struct serio *serio)
serio->parent = NULL;
}
- if (serio->registered) {
- sysfs_remove_group(&serio->dev.kobj, &serio_id_attr_group);
+ if (device_is_registered(&serio->dev))
device_del(&serio->dev);
- serio->registered = false;
- }
list_del_init(&serio->node);
serio_remove_pending_events(serio);
@@ -798,9 +781,8 @@ static void serio_attach_driver(struct serio_driver *drv)
error = driver_attach(&drv->driver);
if (error)
- printk(KERN_WARNING
- "serio: driver_attach() failed for %s with error %d\n",
- drv->driver.name, error);
+ pr_warning("driver_attach() failed for %s with error %d\n",
+ drv->driver.name, error);
}
int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name)
@@ -820,8 +802,7 @@ int __serio_register_driver(struct serio_driver *drv, struct module *owner, cons
error = driver_register(&drv->driver);
if (error) {
- printk(KERN_ERR
- "serio: driver_register() failed for %s, error: %d\n",
+ pr_err("driver_register() failed for %s, error: %d\n",
drv->driver.name, error);
return error;
}
@@ -987,7 +968,7 @@ irqreturn_t serio_interrupt(struct serio *serio,
if (likely(serio->drv)) {
ret = serio->drv->interrupt(serio, data, dfl);
- } else if (!dfl && serio->registered) {
+ } else if (!dfl && device_is_registered(&serio->dev)) {
serio_rescan(serio);
ret = IRQ_HANDLED;
}
@@ -1018,7 +999,7 @@ static int __init serio_init(void)
error = bus_register(&serio_bus);
if (error) {
- printk(KERN_ERR "serio: failed to register serio bus, error: %d\n", error);
+ pr_err("Failed to register serio bus, error: %d\n", error);
return error;
}
@@ -1026,7 +1007,7 @@ static int __init serio_init(void)
if (IS_ERR(serio_task)) {
bus_unregister(&serio_bus);
error = PTR_ERR(serio_task);
- printk(KERN_ERR "serio: Failed to start kseriod, error: %d\n", error);
+ pr_err("Failed to start kseriod, error: %d\n", error);
return error;
}