From a30c4c5ee85680bb66ed8a6c0b0bf4921125c378 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 30 Jun 2013 23:50:24 +0200
Subject: [PATCH] ACPI / dock: Do not leak memory on falilures to add a dock
 station

The function creating and registering dock station objects,
dock_add(), leaks memory if there's an error after it's walked
the ACPI namespace calling find_dock_devices(), because it doesn't
free the list of dependent devices it's just created in those cases.

Fix that issue by adding the missing code to free the list of
dependent devices on errors.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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