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path: root/drivers/connector/connector.c
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Diffstat (limited to 'drivers/connector/connector.c')
-rw-r--r--drivers/connector/connector.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index d7125f4d9113..35897079a78d 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -26,6 +26,7 @@
#include <linux/netlink.h>
#include <linux/moduleparam.h>
#include <linux/connector.h>
+#include <linux/mutex.h>
#include <net/sock.h>
@@ -41,7 +42,7 @@ module_param(cn_val, uint, 0);
MODULE_PARM_DESC(cn_idx, "Connector's main device idx.");
MODULE_PARM_DESC(cn_val, "Connector's main device val.");
-static DECLARE_MUTEX(notify_lock);
+static DEFINE_MUTEX(notify_lock);
static LIST_HEAD(notify_list);
static struct cn_dev cdev;
@@ -260,7 +261,7 @@ static void cn_notify(struct cb_id *id, u32 notify_event)
{
struct cn_ctl_entry *ent;
- down(&notify_lock);
+ mutex_lock(&notify_lock);
list_for_each_entry(ent, &notify_list, notify_entry) {
int i;
struct cn_notify_req *req;
@@ -293,7 +294,7 @@ static void cn_notify(struct cb_id *id, u32 notify_event)
cn_netlink_send(&m, ctl->group, GFP_KERNEL);
}
}
- up(&notify_lock);
+ mutex_unlock(&notify_lock);
}
/*
@@ -407,14 +408,14 @@ static void cn_callback(void *data)
if (ctl->group == 0) {
struct cn_ctl_entry *n;
- down(&notify_lock);
+ mutex_lock(&notify_lock);
list_for_each_entry_safe(ent, n, &notify_list, notify_entry) {
if (cn_ctl_msg_equals(ent->msg, ctl)) {
list_del(&ent->notify_entry);
kfree(ent);
}
}
- up(&notify_lock);
+ mutex_unlock(&notify_lock);
return;
}
@@ -429,9 +430,9 @@ static void cn_callback(void *data)
memcpy(ent->msg, ctl, size - sizeof(*ent));
- down(&notify_lock);
+ mutex_lock(&notify_lock);
list_add(&ent->notify_entry, &notify_list);
- up(&notify_lock);
+ mutex_unlock(&notify_lock);
}
static int __init cn_init(void)