From: cristy <urban-warrior@git.imagemagick.org>
Date: Thu, 16 Jan 2014 01:48:28 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: 7.0.1-0~2850
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e01dc44d3ccb5d2d437f1d966f7469f5a3999a13;p=imagemagick

---

diff --git a/MagickWand/operation.c b/MagickWand/operation.c
index 6f4160df3..34837841c 100644
--- a/MagickWand/operation.c
+++ b/MagickWand/operation.c
@@ -4155,6 +4155,7 @@ WandPrivate MagickBooleanType CLIListOperatorImages(MagickCLI *cli_wand,
               /*
                 Support old style syntax, filter="-option arg1".
               */
+              assert(arg1 != (unsigned char *) NULL);
               length=strlen(arg1);
               token=(char *) NULL;
               if (~length >= (MaxTextExtent-1))