netdev - [PATCH net-next] bonding: uninitialized variable in bond_miimon

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Date:   Mon, 28 Nov 2022 11:20:27 +0300
From:   Dan Carpenter <error27@...il.com>
To:     Jay Vosburgh <j.vosburgh@...il.com>,
        Jonathan Toppins <jtoppins@...hat.com>
Cc:     Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH net-next] bonding: uninitialized variable in
 bond_miimon_inspect()

The "ignore_updelay" variable needs to be initialized to false to
prevent an uninitialized variable bug.

Fixes: f8a65ab2f3ff ("bonding: fix link recovery in mode 2 when updelay is nonzero")
Signed-off-by: Dan Carpenter <error27@...il.com>
---

This was found by Smatch.  Another Smatch warning that might be worth
investigating is:

drivers/net/bonding/bond_main.c:5071 bond_update_slave_arr() warn: missing error code here? 'bond_3ad_get_active_agg_info()' failed. 'ret' = '0'

I don't know the code well enough to say if that's a real bug.

 drivers/net/bonding/bond_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index c87481033995..8a57a5681461 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2527,7 +2527,7 @@ static int bond_miimon_inspect(struct bonding *bond)
 	int link_state, commit = 0;
 	struct list_head *iter;
 	struct slave *slave;
-	bool ignore_updelay;
+	bool ignore_updelay = false;
 
 	if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) {
 		ignore_updelay = !rcu_dereference(bond->curr_active_slave);
-- 
2.35.1