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@xxxxxxxxxxxx>
---
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 cff3535..78001e8 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;
}
--
1.7.0.2
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