[lkml]   [2002]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [patch] 2.5 videodev redesign -- #3
    Am Montag, 4. März 2002 10:47 schrieb Gerd Knorr:
    > > > Comments? Bugs? I plan to feed this to Linus soon ...
    > >
    > > Hi,
    > >
    > > it seems to me that you are not holding the BKL during
    > > the open method of the individual driver. This will
    > > cause races with unplugging on some USB cameras.
    > What race exactly?

    open() can race with videodev_unregister()

    > I don't want videodev.c know details about the devices, it doesn't
    > belong there. If a usb cam needs locking, the usb cam's open() function
    > should do that then. I'll prefare fixing the usb drivers instead of
    > calling driver->open() with BKL held.

    Problematic. I found no other solution than the BKL.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:24    [W:0.028 / U:16.724 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site