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Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error

From Bin Liu <b-liu@ti.com>
Newsgroups linux.kernel
Subject Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error
Date 2016-05-03 15:50 +0200
Message-ID <ruIS7-Hw-23@gated-at.bofh.it> (permalink)
References (3 earlier) <rsDa9-6Ba-3@gated-at.bofh.it> <rsFbZ-8m2-9@gated-at.bofh.it> <rsO5A-75X-9@gated-at.bofh.it> <rsVgL-4Ob-51@gated-at.bofh.it> <ruFrc-6jc-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi,

On Tue, May 03, 2016 at 12:03:52PM +0200, Yegor Yefremov wrote:
> On Thu, Apr 28, 2016 at 4:37 PM, Bin Liu <b-liu@ti.com> wrote:
> > Hi,
> >
> > On Thu, Apr 28, 2016 at 09:51:37AM +0300, Maxim Uvarov wrote:
> >
> > [snip]
> >
> >> Hello Bin,
> >>
> >> yes, it also works with that reset and go to finish:
> >>
> >> diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
> >> index c3d5fc9..8cd98e7 100644
> >> --- a/drivers/usb/musb/musb_host.c
> >> +++ b/drivers/usb/musb/musb_host.c
> >> @@ -1599,6 +1599,10 @@ void musb_host_rx(struct musb *musb, u8 epnum)
> >>                 status = -EPROTO;
> >>                 musb_writeb(epio, MUSB_RXINTERVAL, 0);
> >>
> >> +               rx_csr &= ~MUSB_RXCSR_H_ERROR;
> >> +               musb_writew(epio, MUSB_RXCSR, rx_csr);
> >> +
> >> +               goto finish;
> >>         } else if (rx_csr & MUSB_RXCSR_DATAERROR) {
> >>
> >>                 if (USB_ENDPOINT_XFER_ISOC != qh->type) {
> >>
> >
> > Thanks for testing it.
> 
> Have tested your patch and now both FT4232 and Huawei don't freeze on removal.
> 
> Bin, Max thanks for fixing this issue.
> 
> Tested-by: Yegor Yefremov <yegorslists@googlemail.com>

Thanks for testing.

Can you please test the patch [1] instead? I'd like to use it as the
fix.

Regards,
-Bin.

[1] http://marc.info/?l=linux-usb&m=146222355213935&w=2

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Thread

Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-04-28 16:40 +0200
  Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Yegor Yefremov <yegorslists@googlemail.com> - 2016-05-03 12:10 +0200
    Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-05-03 15:50 +0200
      Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Yegor Yefremov <yegorslists@googlemail.com> - 2016-05-03 16:30 +0200
        Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-05-03 16:40 +0200
          Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Yegor Yefremov <yegorslists@googlemail.com> - 2016-05-04 17:00 +0200
            Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-05-04 21:00 +0200
              Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-04 21:10 +0200
                Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-05-04 21:20 +0200
                Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Greg KH <gregkh@linuxfoundation.org> - 2016-05-04 22:20 +0200
                Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-05-04 22:50 +0200
                Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-05 15:30 +0200
                Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-05-05 15:40 +0200
                Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-05 15:40 +0200
                Re: [PATCHv2] musb_host: fix lockup on rxcsr_h_error Bin Liu <b-liu@ti.com> - 2016-05-05 15:50 +0200

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