From 9005355af23856c55a5538c9024355785424821b Mon Sep 17 00:00:00 2001
From: Jack Pham <jackp@codeaurora.org>
Date: Fri, 15 Nov 2013 14:53:14 -0800
Subject: [PATCH] usb: xhci: Check for XHCI_PLAT in xhci_cleanup_msix()

If CONFIG_PCI is enabled, make sure xhci_cleanup_msix()
doesn't try to free a bogus PCI IRQ or dereference an invalid
pci_dev when the xHCI device is actually a platform_device.

This patch should be backported to kernels as old as 3.9, that
contain the commit 52fb61250a7a132b0cfb9f4a1060a1f3c49e5a25
"xhci-plat: Don't enable legacy PCI interrupts."

Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
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