This is a note to let you know that I've just added the patch titled
usb: xhci: Check for XHCI_PLAT in xhci_cleanup_msix()
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-xhci-check-for-xhci_plat-in-xhci_cleanup_msix.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 9005355af23856c55a5538c9024355785424821b Mon Sep 17 00:00:00 2001
From: Jack Pham <[email protected]>
Date: Fri, 15 Nov 2013 14:53:14 -0800
Subject: usb: xhci: Check for XHCI_PLAT in xhci_cleanup_msix()
From: Jack Pham <[email protected]>
commit 9005355af23856c55a5538c9024355785424821b upstream.
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 <[email protected]>
Signed-off-by: Sarah Sharp <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/host/xhci.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -315,6 +315,9 @@ static void xhci_cleanup_msix(struct xhc
struct usb_hcd *hcd = xhci_to_hcd(xhci);
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
+ if (xhci->quirks & XHCI_PLAT)
+ return;
+
xhci_free_irq(xhci);
if (xhci->msix_entries) {
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/usb-xhci-check-for-xhci_plat-in-xhci_cleanup_msix.patch
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