tree 1c6eaf6a370f29ca4438bac6a8654c1fabbb1ae2
parent c949c224cfd7d5445ef947e8b93c0657323d5be5
author Peter Hurley <peter@hurleysoftware.com> 1391997550 -0500
committer Marcel Holtmann <marcel@holtmann.org> 1392413970 -0800

Bluetooth: Verify dlci not in use before rfcomm_dev create

Only one session/channel combination may be in use at any one
time. However, the failure does not occur until the tty is
opened (in rfcomm_dlc_open()).

Because these settings are actually bound at rfcomm device
creation (via RFCOMMCREATEDEV ioctl), validate and fail before
creating the rfcomm tty device.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Tested-By: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>