Re: [patch] 2.5 videodev redesign -- #3

From: Oliver Neukum (Oliver.Neukum@lrz.uni-muenchen.de)
Date: Mon Mar 04 2002 - 13:45:41 EST


Am Montag, 4. März 2002 13:50 schrieb Gerd Knorr:
> Gerd Knorr wrote:
> > > > 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?
>
> Ok, I've found one: videodev_unregister() must be locked against
> video_open(). New version of the patch below.

OK. It seems that I took the principle of doing little changes only
too far. Thhis patch seems to solve the problem.

        Regards
                Oliver
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