linux-kernel - [PATCH] fs/nfs: Fix used uninitialized warn in nfs4_slot_seqid_in

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Message-Id: <20161107174816.22587-1-shuahkh@osg.samsung.com>
Date:   Mon,  7 Nov 2016 10:48:16 -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] fs/nfs: Fix used uninitialized warn in nfs4_slot_seqid_in_use()

Fix the following warn:

fs/nfs/nfs4session.c: In function ‘nfs4_slot_seqid_in_use’:
fs/nfs/nfs4session.c:203:54: warning: ‘cur_seq’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (nfs4_slot_get_seqid(tbl, slotid, &cur_seq) == 0 &&
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
      cur_seq == seq_nr && test_bit(slotid, tbl->used_slots))
      ~~~~~~~~~~~~~~~~~

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