From: Bart Van Assche <bvanassche@acm.org>
Date: Sun, 29 Aug 2010 15:30:16 +0000 (+0000)
Subject: Don't trigger an assertion failure if len == 0.
X-Git-Tag: svn/VALGRIND_3_6_0~153
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d0bb4d96e2a05fccc7eabe438707d07449be9d2;p=thirdparty%2Fvalgrind.git

Don't trigger an assertion failure if len == 0.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11304
---

diff --git a/drd/drd_main.c b/drd/drd_main.c
index 3b92a9ab81..63e1bb0655 100644
--- a/drd/drd_main.c
+++ b/drd/drd_main.c
@@ -326,6 +326,9 @@ void drd_stop_using_mem(const Addr a1, const SizeT len,
 {
    const Addr a2 = a1 + len;
 
+   if (len == 0)
+      return;
+
    tl_assert(a1 < a2);
 
    if (UNLIKELY(DRD_(any_address_is_traced)()))