diff options
| author | caizhiyong <caizhiyong@huawei.com> | 2013-07-26 09:12:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-26 22:55:21 +0200 |
| commit | 435932f2c75efcdd07273a437b9be32647d56d73 (patch) | |
| tree | a4cd7c9c3055073ad1c15b032fae4928fc294747 /drivers/usb/host/ohci-hcd.c | |
| parent | usb: limit OMAP related USB options to OMAP2PLUS platforms (diff) | |
| download | linux-435932f2c75efcdd07273a437b9be32647d56d73.tar.xz linux-435932f2c75efcdd07273a437b9be32647d56d73.zip | |
USB: ohci_usb warn "irq nobody cared" on shutdown
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@huawei.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ohci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ohci-hcd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index a9d3437da220..8f6b695af6a4 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; |