It works with the high symbol rate transponders.
Tested-by: Nibble Max <nibble.max@xxxxxxxxx>
>Maximum satellite symbol rate used is 45000000Sps which overflows
>when multiplied by 135. As final calculation result is fraction,
>we could use mult_frac macro in order to keep calculation inside
>32 bit number limits and prevent overflow.
>
>Original bug and fix was provided by Nibble Max. I decided to
>implement it differently as it is now.
>
>Reported-by: Nibble Max <nibble.max@xxxxxxxxx>
>Cc: <stable@xxxxxxxxxx>
>Signed-off-by: Antti Palosaari <crope@xxxxxx>
>---
> drivers/media/tuners/m88ts2022.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/media/tuners/m88ts2022.c b/drivers/media/tuners/m88ts2022.c
>index 40c42de..7a62097 100644
>--- a/drivers/media/tuners/m88ts2022.c
>+++ b/drivers/media/tuners/m88ts2022.c
>@@ -314,7 +314,7 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
> div_min = gdiv28 * 78 / 100;
> div_max = clamp_val(div_max, 0U, 63U);
>
>- f_3db_hz = c->symbol_rate * 135UL / 200UL;
>+ f_3db_hz = mult_frac(c->symbol_rate, 135, 200);
> f_3db_hz += 2000000U + (frequency_offset_khz * 1000U);
> f_3db_hz = clamp(f_3db_hz, 7000000U, 40000000U);
>
>--
>http://palosaari.fi/
>
BEGIN:VCARD
VERSION:2.1
N:nibble.max;
FN:nibble.max
EMAIL;PREF;INTERNET:nibble.max@xxxxxxxxx
REV:20140822T103216Z
END:VCARD
