thorpej 7c03f46228 Don't print a warning if the returned transfer count is less than 0.
This can happen during perfectly normal operation if:
	(a) We are using DMA to select a target, and
	(b) we are interrupted by another target reselecting us.
Per discussion with Paul Krannenburg.
1997-06-26 00:31:20 +00:00
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