Sync dfa.c with GNU grep.

2 files changed, 15 insertions, 9 deletions

diff --git a/ChangeLog b/ChangeLog
index 04dbb428..1e5b3d0e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,10 @@
 	* awkgram.y (nextc): Don't allow '\0' even if check_for_bad
 	is false. Fixes a problem reported by Hanno Boeck <hanno@hboeck.de>.
 
+	Unrelated:
+	
+	* dfa.c: Sync with GNU grep.
+
 2015-10-16         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* Makefile.am (SUBDIRS): Fix ordering so that
diff --git a/dfa.c b/dfa.c
index 188a2d56..6be21027 100644
--- a/dfa.c
+++ b/dfa.c
@@ -4189,15 +4189,17 @@ dfamust (struct dfa const *d)
           break;
         }
     }
-done:
-  if (!*result)
-    return NULL;
-
-  dm = xmalloc (sizeof *dm);
-  dm->exact = exact;
-  dm->begline = begline;
-  dm->endline = endline;
-  dm->must = xstrdup (result);
+ done:;
+
+  dm = NULL;
+  if (*result)
+    {
+      dm = xmalloc (sizeof *dm);
+      dm->exact = exact;
+      dm->begline = begline;
+      dm->endline = endline;
+      dm->must = xstrdup (result);
+    }
 
   while (mp)
     {