From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 17 Sep 2014 15:58:27 +0000 (+0200)
Subject: PCI: mvebu: Fix uninitialized variable in mvebu_get_tgt_attr()
X-Git-Tag: omap-for-v3.19/prcm-cleanup~136^2~9^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56fab6e189441d714a2bfc8a64f3df9c0749dff7;p=pandora-kernel.git

PCI: mvebu: Fix uninitialized variable in mvebu_get_tgt_attr()

Geert Uytterhoeven reported a warning when building pci-mvebu:

  drivers/pci/host/pci-mvebu.c: In function 'mvebu_get_tgt_attr':
  drivers/pci/host/pci-mvebu.c:887:39: warning: 'rtype' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if (slot == PCI_SLOT(devfn) && type == rtype) {
					 ^

And indeed, the code of mvebu_get_tgt_attr() may lead to the usage of rtype
when being uninitialized, even though it would only happen if we had
entries other than I/O space and 32 bits memory space.

This commit fixes that by simply skipping the current DT range being
considered, if it doesn't match the resource type we're looking for.

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org	# v3.12+
---

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