From b4d21f193985218c6c75969376249f69e49eb6ee Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Sun, 9 Feb 2014 20:59:16 -0500 Subject: [PATCH] Bluetooth: Fix RFCOMM parent device for reused dlc The RFCOMM tty device is parented to the acl link device when the dlc state_change(BT_CONNECTED) notification is received. However, if the dlc from the RFCOMM socket is being reused (RFCOMM_REUSE_DLC is set), then the dlc may already be connected, and no notification will occur. Instead, always parent the RFCOMM tty device to the acl link device at registration time. If the acl link device is not available (eg, because the dlc is not connected) then the tty will remain unparented until the BT_CONNECTED notification is received. Fixes regression with ModemManager when the rfcomm device is created with the flag RFCOMM_REUSE_DLC. Signed-off-by: Peter Hurley Tested-By: Alexander Holler Signed-off-by: Marcel Holtmann --- net/bluetooth/rfcomm/tty.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 2975bc4b918..fa1226f17e8 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -316,6 +316,7 @@ out: goto free; } + rfcomm_reparent_device(dev); dev_set_drvdata(dev->tty_dev, dev); if (device_create_file(dev->tty_dev, &dev_attr_address) < 0) -- 2.41.0