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Diffstat (limited to 'net/bluetooth/hci_sysfs.c')
-rw-r--r--net/bluetooth/hci_sysfs.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index cad510309dcf..17f7fb720553 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -316,9 +316,26 @@ void hci_conn_add_sysfs(struct hci_conn *conn)
316 schedule_work(&conn->work); 316 schedule_work(&conn->work);
317} 317}
318 318
319static int __match_tty(struct device *dev, void *data)
320{
321 /* The rfcomm tty device will possibly retain even when conn
322 * is down, and sysfs doesn't support move zombie device,
323 * so we should move the device before conn device is destroyed.
324 * Due to the only child device of hci_conn dev is rfcomm
325 * tty_dev, here just return 1
326 */
327 return 1;
328}
329
319static void del_conn(struct work_struct *work) 330static void del_conn(struct work_struct *work)
320{ 331{
332 struct device *dev;
321 struct hci_conn *conn = container_of(work, struct hci_conn, work); 333 struct hci_conn *conn = container_of(work, struct hci_conn, work);
334
335 while (dev = device_find_child(&conn->dev, NULL, __match_tty)) {
336 device_move(dev, NULL);
337 put_device(dev);
338 }
322 device_del(&conn->dev); 339 device_del(&conn->dev);
323 put_device(&conn->dev); 340 put_device(&conn->dev);
324} 341}