X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Futils_latency.c;h=91ddd5fd92485c0a02d6642b56ce346334f40b50;hb=8aad55ab7d737a97d5927458b2b00885e27cae4d;hp=4e1fba627a8b6777a08e433c76ee397fc10144bc;hpb=633c3966f770e4d46651a2fe219a18d8a9907a9f;p=collectd.git

diff --git a/src/utils_latency.c b/src/utils_latency.c
index 4e1fba62..91ddd5fd 100644
--- a/src/utils_latency.c
+++ b/src/utils_latency.c
@@ -128,7 +128,7 @@ cdtime_t latency_counter_get_average (latency_counter_t *lc) /* {{{ */
 {
   double average;
 
-  if (lc == NULL)
+  if ((lc == NULL) || (lc->num == 0))
     return (0);
 
   average = CDTIME_T_TO_DOUBLE (lc->sum) / ((double) lc->num);
@@ -146,7 +146,7 @@ cdtime_t latency_counter_get_percentile (latency_counter_t *lc,
   int sum;
   size_t i;
 
-  if ((lc == NULL) || !((percent > 0.0) && (percent < 100.0)))
+  if ((lc == NULL) || (lc->num == 0) || !((percent > 0.0) && (percent < 100.0)))
     return (0);
 
   /* Find index i so that at least "percent" events are within i+1 ms. */