On Fri, 26 Jul 2013, Caizhiyong wrote: > From: caizhiyong <caizhiyong@xxxxxxxxxx> > > When ohci-hcd is shutting down, call ohci_usb_reset reset ohci-hcd, > the root hub generate an interrupt, but ohci->rh_state is > OHCI_RH_HALTED, and ohci_irq ignore the interrupt, the kernel trigger > warning "irq nobody cared". ehci-hcd is first disable interrupts, > then reset ehci. > > this patch disable ohci interrupt before reset ohci. > > The patch is tested at the arm cortex-a9 demo board. > > Signed-off-by: caizhiyong <caizhiyong@xxxxxxxxxx> > --- > drivers/usb/host/ohci-hcd.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index a9d3437..e4b3c63 100644 > --- a/drivers/usb/host/ohci-hcd.c > +++ b/drivers/usb/host/ohci-hcd.c > @@ -938,8 +938,8 @@ static void ohci_stop (struct usb_hcd *hcd) > if (quirk_nec(ohci)) > flush_work(&ohci->nec_work); > > - ohci_usb_reset (ohci); > ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); > + ohci_usb_reset(ohci); > free_irq(hcd->irq, hcd); > hcd->irq = 0; Reviewed-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
