linux-kernel - [PATCH 4.4 042/132] net: fix warning in af

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Message-Id: <20191127202937.623909833@linuxfoundation.org>
Date:   Wed, 27 Nov 2019 21:30:33 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Kyeongdon Kim <kyeongdon.kim@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 042/132] net: fix warning in af_unix

From: Kyeongdon Kim <kyeongdon.kim@....com>

[ Upstream commit 33c4368ee2589c165aebd8d388cbd91e9adb9688 ]

This fixes the "'hash' may be used uninitialized in this function"

net/unix/af_unix.c:1041:20: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
  addr->hash = hash ^ sk->sk_type;

Signed-off-by: Kyeongdon Kim <kyeongdon.kim@....com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/unix/af_unix.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index b1a72615fdc30..b5e2ef242efe7 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -224,6 +224,8 @@ static inline void unix_release_addr(struct unix_address *addr)
 
 static int unix_mkname(struct sockaddr_un *sunaddr, int len, unsigned int *hashp)
 {
+	*hashp = 0;
+
 	if (len <= sizeof(short) || len > sizeof(*sunaddr))
 		return -EINVAL;
 	if (!sunaddr || sunaddr->sun_family != AF_UNIX)
-- 
2.20.1