PCI: EHCI: Fix crash during hibernation on ASUS computers
authorRafael J. Wysocki <rjw@sisk.pl>
Sun, 12 Aug 2012 21:26:07 +0000 (23:26 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 14 Sep 2012 17:00:20 +0000 (10:00 -0700)
commit81d030df8597288a2fd12950aaf0842dbfa0b216
tree451aa7aca754d26381aa8b0199ef5bcde623961f
parent459243191d5ba70a94d74b604b91bf82bb9f0772
PCI: EHCI: Fix crash during hibernation on ASUS computers

commit 0b68c8e2c3afaf9807eb1ebe0ccfb3b809570aa4 upstream.

Commit dbf0e4c (PCI: EHCI: fix crash during suspend on ASUS
computers) added a workaround for an ASUS suspend issue related to
USB EHCI and a bug in a number of ASUS BIOSes that attempt to shut
down the EHCI controller during system suspend if its PCI command
register doesn't contain 0 at that time.

It turns out that the same workaround is necessary in the analogous
hibernation code path, so add it.

References: https://bugzilla.kernel.org/show_bug.cgi?id=45811
Reported-and-tested-by: Oleksij Rempel <bug-track@fisher-privat.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/pci/pci-driver.c