Re: [linux-usb-devel] Re: [HID] Fix hiddev devfs oops

From: Adam Kropelin (akropel1_at_rochester.rr.com)
Date: 10/13/04

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    To: "Herbert Xu" <herbert@gondor.apana.org.au>, "Pete Zaitcev" <zaitcev@redhat.com>
Date:	Tue, 12 Oct 2004 20:51:23 -0400

    Herbert Xu wrote:
    > On Tue, Oct 12, 2004 at 03:23:43PM -0700, Pete Zaitcev wrote:
    >>
    >> Herbert, I'm sorry for the wait. Marcelo asked me to take care of
    >> this, but I kept postponing it because I wanted to look closer, and
    >> this and that... It looks entirely reasonable and my hid devices
    >> continue to work, but I haven't tested hiddev (UPS or something ?).
    >
    > Yes that's exactly the situation I'm in (APC UPS via USB) and it does
    > fix the OOPS for me when hid is unloaded with the UPS connected.

    Another scenario to keep in mind is unplugging a USB device while a process
    still has its corresponding hiddev node open. I fixed that issue in 2.6 a
    while ago. I'm not sure if 2.4 is susceptible. It may or may not be
    orthogonal to the problem your patch addresses.

    --Adam

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