On Friday 20 April 2007 8:33 am, Alan Stern wrote: > This patch (as901) fixes an oversight in ohci-hcd. The > hub_status_data routine must not try to access the controller's > memory-mapped registers if the controller is in a low-power state; > such attempts will cause a crash on some architectures (such as PPC). > > Signed-off-by: Alan Stern <[EMAIL PROTECTED]>
Acked-by: David Brownell <[EMAIL PROTECTED]> > > --- > > Index: usb-2.6/drivers/usb/host/ohci-hub.c > =================================================================== > --- usb-2.6.orig/drivers/usb/host/ohci-hub.c > +++ usb-2.6/drivers/usb/host/ohci-hub.c > @@ -417,6 +417,8 @@ ohci_hub_status_data (struct usb_hcd *hc > unsigned long flags; > > spin_lock_irqsave (&ohci->lock, flags); > + if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) > + goto done; > > /* undocumented erratum seen on at least rev D */ > if ((ohci->flags & OHCI_QUIRK_AMD756) > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > linux-usb-devel@lists.sourceforge.net > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
