From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 23 Aug 2012 13:35:26 +0000 (+0200)
Subject: MIPS: pci-ar724x: avoid data bus error due to a missing PCIe module
X-Git-Tag: v3.6-rc4~16^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1dca315ce3f78347bca8ce8befe3cc71ae63b7e;p=pandora-kernel.git

MIPS: pci-ar724x: avoid data bus error due to a missing PCIe module

If the controller has no PCIe module attached, accessing of the device
configuration space causes a data bus error. Avoid this by checking the
status of the PCIe link in advance, and indicate an error if the link
is down.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4293/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

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