From: caizhiyong <caizhiy...@huawei.com>
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 <caizhiy...@huawei.com>
---
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;
--
1.8.1.5
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