V4L/DVB (12483): Use DIV_ROUND_CLOSEST
The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@haskernel@
@@
@depends on haskernel@
expression x,__divisor;
@@
- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c
index f5d7b32..6c1dbf9 100644
--- a/drivers/media/dvb/frontends/tda10021.c
+++ b/drivers/media/dvb/frontends/tda10021.c
@@ -176,7 +176,7 @@
tmp = ((symbolrate << 4) % FIN) << 8;
ratio = (ratio << 8) + tmp / FIN;
tmp = (tmp % FIN) << 8;
- ratio = (ratio << 8) + (tmp + FIN/2) / FIN;
+ ratio = (ratio << 8) + DIV_ROUND_CLOSEST(tmp, FIN);
BDR = ratio;
BDRI = (((XIN << 5) / symbolrate) + 1) / 2;