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: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
parent
f7668162a3
commit
221a09d5c4
1 changed files with 4 additions and 0 deletions
|
@ -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);
|
||||
|
|
Reference in a new issue