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uORB: fix off-by-one bug in topic count

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Julian Oes
2016-02-19 16:59:47 +01:00
parent 9c18c9aea4
commit e8402f0f78
1 changed files with 5 additions and 3 deletions
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src/modules/uORB/uORB.cpp
+5 -3
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@@ -308,11 +308,13 @@ int orb_exists(const struct orb_metadata *meta, int instance)
*/ */
int orb_group_count(const struct orb_metadata *meta) int orb_group_count(const struct orb_metadata *meta)
{ {
unsigned group_count = 0; unsigned instance = 0;
while (!uORB::Manager::get_instance()->orb_exists(meta, group_count++)) {}; while (uORB::Manager::get_instance()->orb_exists(meta, instance) == OK) {
++instance;
};
return group_count; return instance;
} }
/** /**