Messages in this thread | | | From | Oliver Neukum <> | Subject | Re: [patch] 2.5 videodev redesign -- #3 | Date | Mon, 4 Mar 2002 14:54:32 +0100 |
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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.
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