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ols: Allow disabling all channels. 

This fixed bug 316.
This commit is contained in:
Bert Vermeulen 2014-04-21 14:46:49 +02:00
parent dba3e6826e
commit 1e1dac0c07
1 changed files with 6 additions and 0 deletions
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6
hardware/openbench-logic-sniffer/api.c
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@ -399,6 +399,12 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
if (devc->channel_mask & (0xff << (i * 8))) if (devc->channel_mask & (0xff << (i * 8)))
num_channels++; num_channels++;
} }
if (num_channels == 0) {
/* This can happen, but shouldn't cause too much drama.
* However we can't continue because the code below would
* divide by zero. */
break;
}
grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES); grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES);
grange[1] = g_variant_new_uint64(devc->max_samples / num_channels); grange[1] = g_variant_new_uint64(devc->max_samples / num_channels);
*data = g_variant_new_tuple(grange, 2); *data = g_variant_new_tuple(grange, 2);