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Commit f78028b6 authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
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[media] tda18271: fix calculation bug in tda18271_rf_tracking_filters_init 



Misplaced parenthesis cause a calculation bug in
tda18271_rf_tracking_filters_init

Thanks to Stefan Sibiga for pointing this out.

Cc: Stefan Sibiga <stefansibiga@yahoo.ca>
Signed-off-by: default avatarMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 2578dfb7

drivers/media/common/tuners/tda18271-fe.c

+4 −4
Original line number Diff line number Diff line
@@ -616,15 +616,15 @@ static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq) 
			map[i].rf1   = rf_freq[RF1] / 1000;

			break;

		case RF2:

			dividend = (s32)(prog_cal[RF2] - prog_tab[RF2]) -

				   (s32)(prog_cal[RF1] + prog_tab[RF1]);

			dividend = (s32)(prog_cal[RF2] - prog_tab[RF2] -

					 prog_cal[RF1] + prog_tab[RF1]);

			divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000;

			map[i].rf_a1 = (dividend / divisor);

			map[i].rf2   = rf_freq[RF2] / 1000;

			break;

		case RF3:

			dividend = (s32)(prog_cal[RF3] - prog_tab[RF3]) -

				   (s32)(prog_cal[RF2] + prog_tab[RF2]);

			dividend = (s32)(prog_cal[RF3] - prog_tab[RF3] -

					 prog_cal[RF2] + prog_tab[RF2]);

			divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000;

			map[i].rf_a2 = (dividend / divisor);

			map[i].rf_b2 = (s32)(prog_cal[RF2] - prog_tab[RF2]);