USB: usb serial gadget, sparse fixes

Fix a few serial gadget issues reported by the latest "sparse":
some functions should have been defined as static, not just
declared that way.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Brownell 2007-05-25 20:40:31 -07:00 committed by Greg Kroah-Hartman
commit b29dbbd811