Tony,
On Tue, Jan 03, 2017 at 04:36:14PM +0100, Greg KH wrote:
> On Tue, Jan 03, 2017 at 09:15:08AM -0600, Bin Liu wrote:
> > From: Tony Lindgren <tony@xxxxxxxxxxx>
> >
> > When unloading omap2430, we can get the following splat:
> >
> > WARNING: CPU: 1 PID: 295 at kernel/irq/manage.c:1478 __free_irq+0xa8/0x2c8
> > Trying to free already-free IRQ 4
> > ...
> > [<c01a8b78>] (free_irq) from [<bf0aea84>]
> > (musbhs_dma_controller_destroy+0x28/0xb0 [musb_hdrc])
> > [<bf0aea84>] (musbhs_dma_controller_destroy [musb_hdrc]) from
> > [<bf09f88c>] (musb_remove+0xf0/0x12c [musb_hdrc])
> > [<bf09f88c>] (musb_remove [musb_hdrc]) from [<c056a384>]
> > (platform_drv_remove+0x24/0x3c)
> > ...
> >
> > This is because the irq number in use is 260 nowadays, and the dma
> > controller is using u8 instead of int.
> >
> > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> > Signed-off-by: Bin Liu <b-liu@xxxxxx>
> > ---
> > drivers/usb/musb/musbhsdma.h | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Is this a new thing?
>
> >
> > diff --git a/drivers/usb/musb/musbhsdma.h b/drivers/usb/musb/musbhsdma.h
> > index f7b13fd25257..a3dcbd55e436 100644
> > --- a/drivers/usb/musb/musbhsdma.h
> > +++ b/drivers/usb/musb/musbhsdma.h
> > @@ -157,5 +157,5 @@ struct musb_dma_controller {
> > void __iomem *base;
> > u8 channel_count;
> > u8 used_channels;
> > - u8 irq;
> > + int irq;
>
> Is this a regression? Needs to go to older kernels? What caused this
> issue?
Is it possible to add a cc stable or Fixes tag?
Thanks,
-Bin.
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