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authorRafael J. Wysocki <rjw@sisk.pl>2009-02-13 23:41:12 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-17 16:56:31 -0800
commit3494252d5644993f407a45f01c3e8ad5ae38f93c (patch)
tree01821aeeb26febe7da71ff6968eaed5b28e4b4f7 /Makefile
parente78ac4b9deb8f36d8c828b6d91232960f109d951 (diff)
USB/PCI: Fix resume breakage of controllers behind cardbus bridges
If a USB PCI controller is behind a cardbus bridge, we are trying to restore its configuration registers too early, before the cardbus bridge is operational. To fix this, call pci_restore_state() from usb_hcd_pci_resume() and remove usb_hcd_pci_resume_early() which is no longer necessary (the configuration spaces of USB controllers that are not behind cardbus bridges will be restored by the PCI PM core with interrupts disabled anyway). This patch fixes the regression from 2.6.28 tracked as http://bugzilla.kernel.org/show_bug.cgi?id=12659 [ Side note: the proper long-term fix is probably to just force the unplug event at suspend time instead of doing a plug/unplug at resume time, but this patch is fine regardless - Linus ] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Miles Lane <miles.lane@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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