From 5f2e3274e527ec52413b43b5a9b30422eda4cdd2 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 13 Apr 2015 21:35:51 +0200
Subject: [PATCH] ACPI / scan: Fix NULL pointer dereference in
 acpi_companion_match()

Commit e1acdeb0e770 "ACPI / scan: Simplify acpi_match_device()"
introduced code that may lead to a NULL pointer dereference when
trying to unlock a mutex.  Fix that.

Fixes: e1acdeb0e770 "ACPI / scan: Simplify acpi_match_device()"
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
Reading git-format-patch failed