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由 Atsushi Nemoto 提交于
Make 'wt' variable signed while it can be negative during calculation. Suggested-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: sshtylyov@ru.mvista.com Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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