diff options
| author | Nicolas Noirbent <nicolas.noirbent@smartjog.com> | 2010-03-22 14:54:43 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-19 12:57:15 -0300 |
| commit | 450df22286eee7431b34644410aeff18936c7afe (patch) | |
| tree | 6e9e8925811ee4e895f94aba45e9b3a7914b1a20 | |
| parent | b4bc3dcbefc0a359744ab13bc8b67c6cb5cd0086 (diff) | |
| download | linux-450df22286eee7431b34644410aeff18936c7afe.tar.bz2 | |
V4L/DVB: ds3000: fix divide-by-zero error in ds3000_read_snr()
Fix a divide-by-zero error in ds3000's ds3000_read_snr(), when getting
a very low signal reading (dvbs2_signal_reading >= 1). This prevents
some nasty EIPs when running szap-s2 with a very low signal strength.
Signed-off-by: Nicolas Noirbent <nicolas.noirbent@smartjog.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/dvb/frontends/ds3000.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/dvb/frontends/ds3000.c b/drivers/media/dvb/frontends/ds3000.c index cff3535566fe..78001e8bcdb7 100644 --- a/drivers/media/dvb/frontends/ds3000.c +++ b/drivers/media/dvb/frontends/ds3000.c @@ -719,7 +719,7 @@ static int ds3000_read_snr(struct dvb_frontend *fe, u16 *snr) (ds3000_readreg(state, 0x8d) << 4); dvbs2_signal_reading = ds3000_readreg(state, 0x8e); tmp = dvbs2_signal_reading * dvbs2_signal_reading >> 1; - if (dvbs2_signal_reading == 0) { + if (tmp == 0) { *snr = 0x0000; return 0; } |