From: Julius Bünger <buenger@mytum.de>
Date: Sun, 8 Apr 2018 21:55:45 +0000 (+0200)
Subject: rps profiler: prevent division by zero
X-Git-Tag: v0.11.0pre66~122^2~5
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=ebee6164ba4e1d50e66d0e195a33e63abac31faa;p=oweals%2Fgnunet.git

rps profiler: prevent division by zero
---

diff --git a/src/rps/test_rps.c b/src/rps/test_rps.c
index 4c10133d2..00835794b 100644
--- a/src/rps/test_rps.c
+++ b/src/rps/test_rps.c
@@ -1994,9 +1994,17 @@ static void compute_probabilities (uint32_t peer_idx)
     if (0 != probs[i]) count_non_zero_prob++;
   }
   /* normalize */
-  for (i = 0; i < num_peers; i++)
+  if (0 != count_non_zero_prob)
   {
-    probs[i] = probs[i] * (1.0 / count_non_zero_prob);
+    for (i = 0; i < num_peers; i++)
+    {
+      probs[i] = probs[i] * (1.0 / count_non_zero_prob);
+    }
+  } else {
+    for (i = 0; i < num_peers; i++)
+    {
+      probs[i] = 0;
+    }
   }
   /* str repr */
   for (i = 0; i < num_peers; i++)