On Sun, Feb 03, 2013 at 04:05:58PM -0500, David Miller wrote:

From: Neil Horman <nhorman@tuxdriver.com>
Date: Sat,  2 Feb 2013 13:51:16 -0500

quoted

I can't say Im a huge fan of returning -EBUSY in open/close, but I
like it better than busy waiting while the poll path completes.

Sorry Neil, this is a show stopper for me.

There is no reason why, just because of bad timing, a device open or
close that would normally succeed, should fail.  And this situation is
only being created because the mutual exclusion and context handling
is "hard", well that's too bad :-)

Alright, fair enough Dave.  I'll either covert this to a busy wait, or use a
mutex to do this.
Neil