Commit d97cc2f2 authored Dec 22, 2005 by David Brownell Committed by Greg Kroah-Hartman Jan 04, 2006

[PATCH] USB: ehci fix driver model wakeup flags

On some systems, EHCI seems to be getting IRQs too early during driver
setup ... before the root hub is allocated, in particular, making trouble
for any code chasing down root hub pointers! In this case, it seems to
be safe to just ignore the root hub setting. Thanks to Rafael J. Wysocki
for getting this properly tested.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent 2c1c3c4c

drivers/usb/host/ehci-hcd.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -624,7 +624,7 @@ static irqreturn_t ehci_irq (struct usb_hcd hcd, struct pt_regs regs)
		}

		/* remote wakeup [4.3.1] */
		if ((status & STS_PCD) && device_may_wakeup(&hcd->self.root_hub->dev)) {
		if (status & STS_PCD) {
		unsigned i = HCS_N_PORTS (ehci->hcs_params);

		/* resume root hub? */