From a3d93aa2e1c285e03d6b8ceecad7d288e9369b1f Mon Sep 17 00:00:00 2001
From: Damiano Galassi <damiog@gmail.com>
Date: Wed, 31 May 2017 11:34:32 +0200
Subject: [PATCH] cli: add an additional null check to silence a clang static
 analyizer warning.

---
 test/test.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/test/test.c b/test/test.c
index d2d791efd..eb1c0ced4 100644
--- a/test/test.c
+++ b/test/test.c
@@ -2661,14 +2661,17 @@ static int ParseOptions( int argc, char ** argv )
                 break;
             case 'n':
             {
-                int    i;
-                char * tmp = optarg;
-                for( i = 0; i < 4; i++ )
+                if( optarg != NULL )
                 {
-                    if( !*tmp )
-                        break;
-                    crop[i] = strtol( tmp, &tmp, 0 );
-                    tmp++;
+                    int    i;
+                    char * tmp = optarg;
+                    for( i = 0; i < 4; i++ )
+                    {
+                        if( !*tmp )
+                            break;
+                        crop[i] = strtol( tmp, &tmp, 0 );
+                        tmp++;
+                    }
                 }
                 break;
             }
-- 
2.40.0