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path: root/drivers/net/irda/sir_dongle.c
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Diffstat (limited to 'drivers/net/irda/sir_dongle.c')
-rw-r--r--drivers/net/irda/sir_dongle.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/net/irda/sir_dongle.c b/drivers/net/irda/sir_dongle.c
index 8d225921ae7b..d7e32d9554fc 100644
--- a/drivers/net/irda/sir_dongle.c
+++ b/drivers/net/irda/sir_dongle.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/kmod.h>
+#include <linux/mutex.h>
#include <net/irda/irda.h>
@@ -28,7 +29,7 @@
*/
static LIST_HEAD(dongle_list); /* list of registered dongle drivers */
-static DECLARE_MUTEX(dongle_list_lock); /* protects the list */
+static DEFINE_MUTEX(dongle_list_lock); /* protects the list */
int irda_register_dongle(struct dongle_driver *new)
{
@@ -38,25 +39,25 @@ int irda_register_dongle(struct dongle_driver *new)
IRDA_DEBUG(0, "%s : registering dongle \"%s\" (%d).\n",
__FUNCTION__, new->driver_name, new->type);
- down(&dongle_list_lock);
+ mutex_lock(&dongle_list_lock);
list_for_each(entry, &dongle_list) {
drv = list_entry(entry, struct dongle_driver, dongle_list);
if (new->type == drv->type) {
- up(&dongle_list_lock);
+ mutex_unlock(&dongle_list_lock);
return -EEXIST;
}
}
list_add(&new->dongle_list, &dongle_list);
- up(&dongle_list_lock);
+ mutex_unlock(&dongle_list_lock);
return 0;
}
EXPORT_SYMBOL(irda_register_dongle);
int irda_unregister_dongle(struct dongle_driver *drv)
{
- down(&dongle_list_lock);
+ mutex_lock(&dongle_list_lock);
list_del(&drv->dongle_list);
- up(&dongle_list_lock);
+ mutex_unlock(&dongle_list_lock);
return 0;
}
EXPORT_SYMBOL(irda_unregister_dongle);
@@ -75,7 +76,7 @@ int sirdev_get_dongle(struct sir_dev *dev, IRDA_DONGLE type)
return -EBUSY;
/* serialize access to the list of registered dongles */
- down(&dongle_list_lock);
+ mutex_lock(&dongle_list_lock);
list_for_each(entry, &dongle_list) {
drv = list_entry(entry, struct dongle_driver, dongle_list);
@@ -109,14 +110,14 @@ int sirdev_get_dongle(struct sir_dev *dev, IRDA_DONGLE type)
if (!drv->open || (err=drv->open(dev))!=0)
goto out_reject; /* failed to open driver */
- up(&dongle_list_lock);
+ mutex_unlock(&dongle_list_lock);
return 0;
out_reject:
dev->dongle_drv = NULL;
module_put(drv->owner);
out_unlock:
- up(&dongle_list_lock);
+ mutex_unlock(&dongle_list_lock);
return err;
}