Frontend bandwidth calculation overflows on very high DVB-S/S2 symbol rates. Use mult_frac() macro in order to keep calculation correct. Signed-off-by: Antti Palosaari <crope@xxxxxx> --- drivers/media/dvb-core/dvb_frontend.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c index 882ca41..a894d4c 100644 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@ -2216,7 +2216,7 @@ static int dtv_set_frontend(struct dvb_frontend *fe) break; } if (rolloff) - c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; + c->bandwidth_hz = mult_frac(c->symbol_rate, rolloff, 100); /* force auto frequency inversion if requested */ if (dvb_force_auto_inversion) -- http://palosaari.fi/ -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
