bonding: fix mii_status when slave is down

netif_carrier_ok() doesn't check if the slave is up. Before the below
commit, netif_running() was also checked.

Fixes: 23a6037 ("bonding: Remove support for use_carrier")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Link: https://patch.msgid.link/20251106180252.3974772-1-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: NicolasDichtel

drivers/net/bonding/bond_main.c

@@ -2120,7 +2120,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
 	/* check for initial state */
 	new_slave->link = BOND_LINK_NOCHANGE;
 	if (bond->params.miimon) {
-		if (netif_carrier_ok(slave_dev)) {
+		if (netif_running(slave_dev) && netif_carrier_ok(slave_dev)) {
 			if (bond->params.updelay) {
 				bond_set_slave_link_state(new_slave,
 							  BOND_LINK_BACK,
@@ -2665,7 +2665,8 @@ static int bond_miimon_inspect(struct bonding *bond)
 	bond_for_each_slave_rcu(bond, slave, iter) {
 		bond_propose_link_state(slave, BOND_LINK_NOCHANGE);
 
-		link_state = netif_carrier_ok(slave->dev);
+		link_state = netif_running(slave->dev) &&
+			     netif_carrier_ok(slave->dev);
 
 		switch (slave->link) {
 		case BOND_LINK_UP: