tree 0d9f11ff8cb328fd79dfb77dd8a773cfbb47a366
parent 0864c7a9286b02319d3db2103bada1c2269c1e1e
author David Brownell <david-b@pacbell.net> 1169016986 -0800
committer Greg Kroah-Hartman <gregkh@suse.de> 1170891878 -0800

USB: gadgetfs race fix

This resolves a race in gadgetfs associated with changing device/ep0
when processing control requests.  The fix is to change that state
earlier, when the control response is issued, so there's no window
in which userspace could see the wrong state; and enlarge the scope
of the spinlock during the ep0 request completion handler.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>