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| author | Andrew de Quincey <adq_dvb@lidskialf.net> | 2006-11-23 00:01:21 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-11-26 16:02:43 +0300 |
| commit | 221a09d5c4cb8384d9be74db60f37a5752675255 (patch) | |
| tree | 66da0b068aa62537b53252a2f1316c5183f895f2 | |
| parent | f7668162a366d1ce0fe84122d11108e13a8ce950 (diff) | |
| download | linux-221a09d5c4cb8384d9be74db60f37a5752675255.tar.xz | |
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>
| -rw-r--r-- | drivers/media/dvb/frontends/tda10086.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/tda10086.c b/drivers/media/dvb/frontends/tda10086.c index 7456b0b9976b..4c27a2d90a38 100644 --- a/drivers/media/dvb/frontends/tda10086.c +++ b/drivers/media/dvb/frontends/tda10086.c @@ -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); |