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AP_Scheduler: prevent a divide by zero

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This commit is contained in:
Andrew Tridgell 2013-08-02 22:07:00 +10:00
parent 890b77447a
commit b7e3851ef8
1 changed files with 3 additions and 0 deletions
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3
libraries/AP_Scheduler/AP_Scheduler.cpp
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@ -121,6 +121,9 @@ uint16_t AP_Scheduler::time_available_usec(void)
*/ */
float AP_Scheduler::load_average(uint32_t tick_time_usec) const float AP_Scheduler::load_average(uint32_t tick_time_usec) const
{ {
if (_spare_ticks == 0) {
return 0.0f;
}
uint32_t used_time = tick_time_usec - (_spare_micros/_spare_ticks); uint32_t used_time = tick_time_usec - (_spare_micros/_spare_ticks);
return used_time / (float)tick_time_usec; return used_time / (float)tick_time_usec;
} }