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Diffstat (limited to 'net/bluetooth/hci_sysfs.c')
-rw-r--r--net/bluetooth/hci_sysfs.c87
1 files changed, 44 insertions, 43 deletions
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index ed82796d4a0f..582d8877078c 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -9,8 +9,7 @@
struct class *bt_class = NULL;
EXPORT_SYMBOL_GPL(bt_class);
-static struct workqueue_struct *btaddconn;
-static struct workqueue_struct *btdelconn;
+static struct workqueue_struct *bt_workq;
static inline char *link_typetostr(int type)
{
@@ -88,9 +87,10 @@ static struct device_type bt_link = {
static void add_conn(struct work_struct *work)
{
- struct hci_conn *conn = container_of(work, struct hci_conn, work);
+ struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
- flush_workqueue(btdelconn);
+ /* ensure previous del is complete */
+ flush_work(&conn->work_del);
if (device_add(&conn->dev) < 0) {
BT_ERR("Failed to register connection device");
@@ -98,27 +98,6 @@ static void add_conn(struct work_struct *work)
}
}
-void hci_conn_add_sysfs(struct hci_conn *conn)
-{
- struct hci_dev *hdev = conn->hdev;
-
- BT_DBG("conn %p", conn);
-
- conn->dev.type = &bt_link;
- conn->dev.class = bt_class;
- conn->dev.parent = &hdev->dev;
-
- dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
-
- dev_set_drvdata(&conn->dev, conn);
-
- device_initialize(&conn->dev);
-
- INIT_WORK(&conn->work, add_conn);
-
- queue_work(btaddconn, &conn->work);
-}
-
/*
* The rfcomm tty device will possibly retain even when conn
* is down, and sysfs doesn't support move zombie device,
@@ -131,9 +110,15 @@ static int __match_tty(struct device *dev, void *data)
static void del_conn(struct work_struct *work)
{
- struct hci_conn *conn = container_of(work, struct hci_conn, work);
+ struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
struct hci_dev *hdev = conn->hdev;
+ /* ensure previous add is complete */
+ flush_work(&conn->work_add);
+
+ if (!device_is_registered(&conn->dev))
+ return;
+
while (1) {
struct device *dev;
@@ -149,16 +134,40 @@ static void del_conn(struct work_struct *work)
hci_dev_put(hdev);
}
-void hci_conn_del_sysfs(struct hci_conn *conn)
+void hci_conn_init_sysfs(struct hci_conn *conn)
{
+ struct hci_dev *hdev = conn->hdev;
+
BT_DBG("conn %p", conn);
- if (!device_is_registered(&conn->dev))
- return;
+ conn->dev.type = &bt_link;
+ conn->dev.class = bt_class;
+ conn->dev.parent = &hdev->dev;
+
+ dev_set_drvdata(&conn->dev, conn);
+
+ device_initialize(&conn->dev);
+
+ INIT_WORK(&conn->work_add, add_conn);
+ INIT_WORK(&conn->work_del, del_conn);
+}
+
+void hci_conn_add_sysfs(struct hci_conn *conn)
+{
+ struct hci_dev *hdev = conn->hdev;
+
+ BT_DBG("conn %p", conn);
- INIT_WORK(&conn->work, del_conn);
+ dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
- queue_work(btdelconn, &conn->work);
+ queue_work(bt_workq, &conn->work_add);
+}
+
+void hci_conn_del_sysfs(struct hci_conn *conn)
+{
+ BT_DBG("conn %p", conn);
+
+ queue_work(bt_workq, &conn->work_del);
}
static inline char *host_typetostr(int type)
@@ -435,20 +444,13 @@ void hci_unregister_sysfs(struct hci_dev *hdev)
int __init bt_sysfs_init(void)
{
- btaddconn = create_singlethread_workqueue("btaddconn");
- if (!btaddconn)
+ bt_workq = create_singlethread_workqueue("bluetooth");
+ if (!bt_workq)
return -ENOMEM;
- btdelconn = create_singlethread_workqueue("btdelconn");
- if (!btdelconn) {
- destroy_workqueue(btaddconn);
- return -ENOMEM;
- }
-
bt_class = class_create(THIS_MODULE, "bluetooth");
if (IS_ERR(bt_class)) {
- destroy_workqueue(btdelconn);
- destroy_workqueue(btaddconn);
+ destroy_workqueue(bt_workq);
return PTR_ERR(bt_class);
}
@@ -457,8 +459,7 @@ int __init bt_sysfs_init(void)
void bt_sysfs_cleanup(void)
{
- destroy_workqueue(btaddconn);
- destroy_workqueue(btdelconn);
+ destroy_workqueue(bt_workq);
class_destroy(bt_class);
}