this patch converts two if () BUG(); construct to BUG_ON();
which occupies less space, uses unlikely and is safer when
BUG() is disabled.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Acked-by: N"Ping Cheng" <pingc@wacom.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>