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| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-25 14:07:45 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-25 14:07:45 +0200 |
| commit | f5a1ba833ddfd801b4adc463b0705938a8ff632f (patch) | |
| tree | 70e83dfe2e02955557c7b81b815f0851add98f6a /drivers/media/dvb-frontends | |
| parent | media: dvb-frontends/stv0367: SNR DVBv5 statistics for DVB-C and T (diff) | |
| download | linux-f5a1ba833ddfd801b4adc463b0705938a8ff632f.tar.xz linux-f5a1ba833ddfd801b4adc463b0705938a8ff632f.zip | |
media: stv0367: prevent division by zero
While there's a test at the SNR calculus to avoid division by
zero, it will still follow the path that would do the division.
So, add a missing break there.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/dvb-frontends')
| -rw-r--r-- | drivers/media/dvb-frontends/stv0367.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/dvb-frontends/stv0367.c b/drivers/media/dvb-frontends/stv0367.c index fee2a1554203..e7bed20e80f6 100644 --- a/drivers/media/dvb-frontends/stv0367.c +++ b/drivers/media/dvb-frontends/stv0367.c @@ -3014,8 +3014,10 @@ static void stv0367ddb_read_snr(struct dvb_frontend *fe) regval = stv0367cab_snr_readreg(fe, 0); /* prevent division by zero */ - if (!regval) + if (!regval) { snrval = 0; + break; + } tmpval = (cab_pwr * 320) / regval; snrval = ((tmpval != 0) ? (intlog2(tmpval) / 5581) : 0); |