From 29d1df72ce2ac187d457990fe445a16212dcfa19 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Wed, 14 Mar 2018 03:07:27 -0500
Subject: [PATCH] pktgen: Fix memory leak in pktgen_if_write

_buf_ is an array and the one that must be freed is _tp_ instead.

Fixes: a870a02cc963 ("pktgen: use dynamic allocation for debug print buffer")
Reported-by: Wang Jian <jianjian.wang1@gmail.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/pktgen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index fd65761e1fed..545cf08cd558 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -913,7 +913,7 @@ static ssize_t pktgen_if_write(struct file *file,
 			return PTR_ERR(tp);
 
 		pr_debug("%s,%zu  buffer -:%s:-\n", name, count, tp);
-		kfree(buf);
+		kfree(tp);
 	}
 
 	if (!strcmp(name, "min_pkt_size")) {