| Date | Sun, 5 Oct 2008 22:36:58 -0700 | From | Greg KH <> | Subject | Re: [PATCH 38/76] tty: usb-serial krefs |
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On Sun, Oct 05, 2008 at 05:11:38PM +0100, Alan Cox wrote: > Use kref in the USB serial drivers so that we don't free tty structures > from under the URB receive handlers as has historically been the case if > you were unlucky. This also gives us a framework for general tty drivers to > use tty_port objects and refcount.
Should we be calling kref_get() and kref_put() in interrupt context? Could we just get the reference in open and then put in close when we are done with it for each driver?
thanks,
greg k-h
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