tree 09037ffddcea6f5b8b18ab20035904408d2869ea
parent e71d31da062095d8b0b02a26fb5e8879e8d3d0de
author Stefan Richter <stefanr@s5r6.in-berlin.de> 1244306127 +0200
committer Stefan Richter <stefanr@s5r6.in-berlin.de> 1244317550 +0200

firewire: add parent-of-unit accessor

Retrieval of an fw_unit's parent is a common pattern in high-level code.
Wrap it up as device = fw_parent_device(unit).

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>