From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 31 Jan 2022 16:42:07 +0000 (-0800)
Subject: tsort: pacify -fsanitizer=leak
X-Git-Tag: v9.1~110
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7de740baad9b8b06b80098a3fd5bd0997218f52;p=thirdparty%2Fcoreutils.git

tsort: pacify -fsanitizer=leak

* src/tsort.c (detect_loop): Free removed successor.
---

diff --git a/src/tsort.c b/src/tsort.c
index 28a7a05f6e..19b991beda 100644
--- a/src/tsort.c
+++ b/src/tsort.c
@@ -352,8 +352,10 @@ detect_loop (struct item *k)
                           if (loop == k)
                             {
                               /* Remove relation.  */
-                              (*p)->suc->count--;
-                              *p = (*p)->next;
+                              struct successor *s = *p;
+                              s->suc->count--;
+                              *p = s->next;
+                              IF_LINT (free (s));
                               break;
                             }