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coverity 227889 227898 - division by zero

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This commit is contained in:
Philippe Teuwen
2019-10-09 23:01:07 +02:00
parent 2024f87ed3
commit e4ad1a7471
1 changed files with 10 additions and 4 deletions
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14
common/lfdemod.c
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@@ -117,8 +117,11 @@ void computeSignalProperties(uint8_t *samples, uint32_t size) {
sum += samples[i]; sum += samples[i];
cnt++; cnt++;
} }
signalprop.mean = sum / cnt; if (cnt > 0)
signalprop.mean = sum / cnt;
else
signalprop.mean = 0;
#else #else
for (uint32_t i = SIGNAL_IGNORE_FIRST_SAMPLES; i < size; i++) { for (uint32_t i = SIGNAL_IGNORE_FIRST_SAMPLES; i < size; i++) {
if (samples[i] < signalprop.low) signalprop.low = samples[i]; if (samples[i] < signalprop.low) signalprop.low = samples[i];
@@ -160,8 +163,11 @@ void removeSignalOffset(uint8_t *samples, uint32_t size) {
acc_off += samples[i] - 128; acc_off += samples[i] - 128;
cnt++; cnt++;
} }
acc_off /= cnt; if (cnt > 0)
acc_off /= cnt;
else
acc_off = 0;
#else #else
for (uint32_t i = SIGNAL_IGNORE_FIRST_SAMPLES; i < size; i++) for (uint32_t i = SIGNAL_IGNORE_FIRST_SAMPLES; i < size; i++)
acc_off += samples[i] - 128; acc_off += samples[i] - 128;