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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 cad5103..17f7fb7 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)
schedule_work(&conn->work);
}
+static int __match_tty(struct device *dev, void *data)
+{
+ /* The rfcomm tty device will possibly retain even when conn
+ * is down, and sysfs doesn't support move zombie device,
+ * so we should move the device before conn device is destroyed.
+ * Due to the only child device of hci_conn dev is rfcomm
+ * tty_dev, here just return 1
+ */
+ return 1;
+}
+
static void del_conn(struct work_struct *work)
{
+ struct device *dev;
struct hci_conn *conn = container_of(work, struct hci_conn, work);
+
+ while (dev = device_find_child(&conn->dev, NULL, __match_tty)) {
+ device_move(dev, NULL);
+ put_device(dev);
+ }
device_del(&conn->dev);
put_device(&conn->dev);
}
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