From 917e1042f75e9db2836def41210fa756c8ca3a85 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Thu, 21 Aug 2014 10:44:13 -0400
Subject: [PATCH] Suppress coverity warning about overflowing in
 safe_mem_is_zero

The unsigned underflow here is defined and intentional.

CID 202482
---
 src/common/di_ops.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/common/di_ops.c b/src/common/di_ops.c
index f03b2b75ec..a8bfd02532 100644
--- a/src/common/di_ops.c
+++ b/src/common/di_ops.c
@@ -218,6 +218,7 @@ safe_mem_is_zero(const void *mem, size_t sz)
     total |= *ptr++;
   }
 
+  /*coverity[overflow]*/
   return 1 & ((total - 1) >> 8);
 }