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authorSteven Whitehouse <swhiteho@redhat.com>2006-04-03 09:08:57 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-04-03 09:08:57 -0400
commit76467874b83835129dc454e3a7a8e5d1186101b0 (patch)
tree162129f0c36c35be4aa323cf00626db0e804c3fc /drivers/input/serio/serio.c
parent8628de0583504138551a05ad44ca388467f0f552 (diff)
parent6246b6128bbe34d0752f119cf7c5111c85fe481d (diff)
Merge branch 'master'
Diffstat (limited to 'drivers/input/serio/serio.c')
-rw-r--r--drivers/input/serio/serio.c48
1 files changed, 25 insertions, 23 deletions
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 2f76813c3a6..6521034bc93 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -34,6 +34,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/kthread.h>
+#include <linux/mutex.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Serio abstraction core");
@@ -52,10 +53,10 @@ EXPORT_SYMBOL(serio_rescan);
EXPORT_SYMBOL(serio_reconnect);
/*
- * serio_sem protects entire serio subsystem and is taken every time
+ * serio_mutex protects entire serio subsystem and is taken every time
* serio port or driver registrered or unregistered.
*/
-static DECLARE_MUTEX(serio_sem);
+static DEFINE_MUTEX(serio_mutex);
static LIST_HEAD(serio_list);
@@ -70,9 +71,9 @@ static int serio_connect_driver(struct serio *serio, struct serio_driver *drv)
{
int retval;
- down(&serio->drv_sem);
+ mutex_lock(&serio->drv_mutex);
retval = drv->connect(serio, drv);
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
return retval;
}
@@ -81,20 +82,20 @@ static int serio_reconnect_driver(struct serio *serio)
{
int retval = -1;
- down(&serio->drv_sem);
+ mutex_lock(&serio->drv_mutex);
if (serio->drv && serio->drv->reconnect)
retval = serio->drv->reconnect(serio);
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
return retval;
}
static void serio_disconnect_driver(struct serio *serio)
{
- down(&serio->drv_sem);
+ mutex_lock(&serio->drv_mutex);
if (serio->drv)
serio->drv->disconnect(serio);
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
}
static int serio_match_port(const struct serio_device_id *ids, struct serio *serio)
@@ -195,6 +196,7 @@ static void serio_queue_event(void *object, struct module *owner,
if ((event = kmalloc(sizeof(struct serio_event), GFP_ATOMIC))) {
if (!try_module_get(owner)) {
printk(KERN_WARNING "serio: Can't get module reference, dropping event %d\n", event_type);
+ kfree(event);
goto out;
}
@@ -272,7 +274,7 @@ static void serio_handle_event(void)
struct serio_event *event;
struct serio_driver *serio_drv;
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
/*
* Note that we handle only one event here to give swsusp
@@ -314,7 +316,7 @@ static void serio_handle_event(void)
serio_free_event(event);
}
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
/*
@@ -449,7 +451,7 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *
struct device_driver *drv;
int retval;
- retval = down_interruptible(&serio_sem);
+ retval = mutex_lock_interruptible(&serio_mutex);
if (retval)
return retval;
@@ -469,7 +471,7 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *
retval = -EINVAL;
}
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
return retval;
}
@@ -524,7 +526,7 @@ static void serio_init_port(struct serio *serio)
__module_get(THIS_MODULE);
spin_lock_init(&serio->lock);
- init_MUTEX(&serio->drv_sem);
+ mutex_init(&serio->drv_mutex);
device_initialize(&serio->dev);
snprintf(serio->dev.bus_id, sizeof(serio->dev.bus_id),
"serio%ld", (long)atomic_inc_return(&serio_no) - 1);
@@ -661,10 +663,10 @@ void __serio_register_port(struct serio *serio, struct module *owner)
*/
void serio_unregister_port(struct serio *serio)
{
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
serio_disconnect_port(serio);
serio_destroy_port(serio);
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
/*
@@ -672,17 +674,17 @@ void serio_unregister_port(struct serio *serio)
*/
void serio_unregister_child_port(struct serio *serio)
{
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
if (serio->child) {
serio_disconnect_port(serio->child);
serio_destroy_port(serio->child);
}
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
/*
* Submits register request to kseriod for subsequent execution.
- * Can be used when it is not obvious whether the serio_sem is
+ * Can be used when it is not obvious whether the serio_mutex is
* taken or not and when delayed execution is feasible.
*/
void __serio_unregister_port_delayed(struct serio *serio, struct module *owner)
@@ -765,7 +767,7 @@ void serio_unregister_driver(struct serio_driver *drv)
{
struct serio *serio;
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
drv->manual_bind = 1; /* so serio_find_driver ignores it */
start_over:
@@ -779,7 +781,7 @@ start_over:
}
driver_unregister(&drv->driver);
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
static void serio_set_drv(struct serio *serio, struct serio_driver *drv)
@@ -858,7 +860,7 @@ static int serio_resume(struct device *dev)
return 0;
}
-/* called from serio_driver->connect/disconnect methods under serio_sem */
+/* called from serio_driver->connect/disconnect methods under serio_mutex */
int serio_open(struct serio *serio, struct serio_driver *drv)
{
serio_set_drv(serio, drv);
@@ -870,7 +872,7 @@ int serio_open(struct serio *serio, struct serio_driver *drv)
return 0;
}
-/* called from serio_driver->connect/disconnect methods under serio_sem */
+/* called from serio_driver->connect/disconnect methods under serio_mutex */
void serio_close(struct serio *serio)
{
if (serio->close)
@@ -923,5 +925,5 @@ static void __exit serio_exit(void)
kthread_stop(serio_task);
}
-module_init(serio_init);
+subsys_initcall(serio_init);
module_exit(serio_exit);