From: Bjorn Helgaas <bhelgaas@google.com>
Date: Tue, 29 Apr 2014 18:51:55 +0000 (-0600)
Subject: PCI: Fix use of uninitialized MPS value
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~38^2~9^5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e358f94c00570f88a590cabe718daf835440cc9;p=pandora-kernel.git

PCI: Fix use of uninitialized MPS value

If "pcie_bus_config == PCIE_BUS_PERFORMANCE", we don't initialize "smpss",
so we pass a pointer to garbage into pcie_bus_configure_set(), where we
compute "mps" based on the garbage.  We then pass the garbage "mps" to
pcie_write_mps(), which ignores it in the PCIE_BUS_PERFORMANCE case.

Coverity isn't smart enough to deduce that we ignore the garbage (it's a
lot to expect from a human, too), so initialize "smpss" to a safe value in
all cases.

Found by Coverity (CID 146454).

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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