bluetooth: put hci dev after del conn

Move hci_dev_put to del_conn to avoid hci dev going away before hci conn.

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index f5aff6d0988a..767756c8fbcf 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -334,6 +334,7 @@ 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_dev *hdev = conn->hdev;
 
         while (1) {
                 struct device *dev;
@@ -344,8 +345,10 @@ static void del_conn(struct work_struct *work)
                 device_move(dev, NULL);
                 put_device(dev);
         }
+
         device_del(&conn->dev);
         put_device(&conn->dev);
+        hci_dev_put(hdev);
 }
 
 void hci_conn_del_sysfs(struct hci_conn *conn)