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Commit 221a09d5 authored by Andrew de Quincey's avatar Andrew de Quincey Committed by Mauro Carvalho Chehab
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V4L/DVB (4874): Fix oops on symbol rate==0 



The tda10086 causes an oops (divide by zero) if a zero symbol rate is used;
this prevents this.

Signed-off-by: default avatarAndrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent f7668162

drivers/media/dvb/frontends/tda10086.c

+4 −0
Original line number Diff line number Diff line
@@ -441,6 +441,10 @@ static int tda10086_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_pa 


	dprintk ("%s\n", __FUNCTION__);



	// check for invalid symbol rate

	if (fe_params->u.qpsk.symbol_rate < 500000)

		return -EINVAL;



	// calculate the updated frequency (note: we convert from Hz->kHz)

	tmp64 = tda10086_read_byte(state, 0x52);

	tmp64 |= (tda10086_read_byte(state, 0x51) << 8);