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V4L/DVB (6818): git-dvb: drivers/media/dvb/frontends/zl10353.c: avoid 64-bit divide

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Andrew Morton 17 年之前
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共有 1 个文件被更改,包括 2 次插入1 次删除
  1. 2 1
      drivers/media/dvb/frontends/zl10353.c

+ 2 - 1
drivers/media/dvb/frontends/zl10353.c

@@ -144,7 +144,8 @@ static void zl10353_calc_nominal_rate(struct dvb_frontend *fe,
 		break;
 	}
 
-	value = (bw * (u64)10 * (1 << 23) / 7 * 125 + adc_clock / 2);
+	value = (u64)10 * (1 << 23) / 7 * 125;
+	value = (bw * value) + adc_clock / 2;
 	do_div(value, adc_clock);
 	*nominal_rate = value;