diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 61309b26f2715cf26464151ab549830919457bd2..85a1c6be2db980d26410d42d0579350d6d19aa3d 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -292,6 +292,8 @@ int hci_conn_del(struct hci_conn *conn)
 
 	hci_conn_del_sysfs(conn);
 
+	hci_dev_put(hdev);
+
 	return 0;
 }
 
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index a05d45eb3ba115c16447e108b2781645e4fa85d3..4cc3624bd22d083e4c586d07bd98b819674aabe2 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -99,6 +99,8 @@ static void add_conn(struct work_struct *work)
 		BT_ERR("Failed to register connection device");
 		return;
 	}
+
+	hci_dev_hold(hdev);
 }
 
 /*
@@ -134,6 +136,7 @@ static void del_conn(struct work_struct *work)
 
 	device_del(&conn->dev);
 	put_device(&conn->dev);
+
 	hci_dev_put(hdev);
 }