linux-kernel - [PATCH] net/netfiliter: Fix used uninitialized warn in ip_vs_proc_sync

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Date:   Mon,  7 Nov 2016 08:41:13 -0700
From:   Shuah Khan <shuahkh@....samsung.com>
To:     trond.myklebust@...marydata.com, anna.schumaker@...app.com
Cc:     Shuah Khan <shuahkh@....samsung.com>, linux-nfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] net/netfiliter: Fix used uninitialized warn in ip_vs_proc_sync_conn()

Fix the following warn:

 net/netfilter/ipvs/ip_vs_sync.c: In function ‘ip_vs_proc_sync_conn’:
 net/netfilter/ipvs/ip_vs_sync.c:1069:33: warning: ‘opt.init_seq’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   struct ip_vs_sync_conn_options opt;
                                  ^~~
 net/netfilter/ipvs/ip_vs_sync.c:1069:33: warning: ‘opt.delta’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 net/netfilter/ipvs/ip_vs_sync.c:1069:33: warning: ‘opt.previous_delta’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 net/netfilter/ipvs/ip_vs_sync.c:1069:33: warning: ‘*((void *)&opt+12).init_seq’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 net/netfilter/ipvs/ip_vs_sync.c:1069:33: warning: ‘*((void *)&opt+12).delta’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 net/netfilter/ipvs/ip_vs_sync.c:1069:33: warning: ‘*((void *)&opt+12).previous_delta’ may be used uninitialized in this function [-Wmaybe-uninitialized]

Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
---
 fs/nfs/nfs4session.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c
index b629730..68e700e 100644
--- a/fs/nfs/nfs4session.c
+++ b/fs/nfs/nfs4session.c
@@ -196,7 +196,7 @@ static int nfs4_slot_get_seqid(struct nfs4_slot_table  *tbl, u32 slotid,
 static bool nfs4_slot_seqid_in_use(struct nfs4_slot_table *tbl,
 		u32 slotid, u32 seq_nr)
 {
-	u32 cur_seq;
+	u32 cur_seq = 0;
 	bool ret = false;
 
 	spin_lock(&tbl->slot_tbl_lock);
-- 
2.9.3