From 51f7a48bf05d77b6d602cbfc793f884277cfb5ce Mon Sep 17 00:00:00 2001
From: Juli Mallett <jmallett@FreeBSD.org>
Date: Tue, 4 Jun 2002 04:08:18 +0000
Subject: [PATCH] Err, duh, free(3) doesn't set its argument to NULL...  Fix
 realloc of a freed chunk.

---
 usr.bin/xargs/xargs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/usr.bin/xargs/xargs.c b/usr.bin/xargs/xargs.c
index 3616249bee5..0922abf5867 100644
--- a/usr.bin/xargs/xargs.c
+++ b/usr.bin/xargs/xargs.c
@@ -457,8 +457,10 @@ prerun(int argc, char **argv)
 	/*
 	 * Free the input line buffer, if we have one.
 	 */
-	if (inpline != NULL)
+	if (inpline != NULL) {
 		free(inpline);
+		inpline = NULL;
+	}
 }
 
 static void