From: ethan.zhao <ethan.zhao@oracle.com>
Date: Fri, 26 Jul 2013 17:21:24 +0000 (-0600)
Subject: x86/PCI: MMCONFIG: Check earlier for MMCONFIG region at address zero
X-Git-Tag: v3.12-rc1~177^2~8^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07f9b61c;p=pandora-kernel.git

x86/PCI: MMCONFIG: Check earlier for MMCONFIG region at address zero

We can check for addr being zero earlier and thus avoid the mutex_unlock()
cleanup path.

[bhelgaas: drop warning printk]
Signed-off-by: ethan.zhao <ethan.zhao@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---

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