Unplugging an USB mouse yields a panic on latest git -master

[Matthew Dillon]

    Ok, this issue has been fixed.  Forget that patch.  I committed the
    fixes to master.  Basically it was a minor use-after-free case.

    Thanks to Rumko and Stathis Kamperis for providing the clues to
    track this down!

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>