octeon_ep: Fix host hang issue during device reboot

JIRA: https://issues.redhat.com/browse/RHEL-90058

commit 34f4273
Author: Sathesh B Edara <sedara@marvell.com>
Date:   Tue Apr 29 04:46:24 2025 -0700

    octeon_ep: Fix host hang issue during device reboot

    When the host loses heartbeat messages from the device,
    the driver calls the device-specific ndo_stop function,
    which frees the resources. If the driver is unloaded in
    this scenario, it calls ndo_stop again, attempting to free
    resources that have already been freed, leading to a host
    hang issue. To resolve this, dev_close should be called
    instead of the device-specific stop function.dev_close
    internally calls ndo_stop to stop the network interface
    and performs additional cleanup tasks. During the driver
    unload process, if the device is already down, ndo_stop
    is not called.

    Fixes: 5cb96c2 ("octeon_ep: add heartbeat monitor")
    Signed-off-by: Sathesh B Edara <sedara@marvell.com>
    Reviewed-by: Simon Horman <horms@kernel.org>
    Link: https://patch.msgid.link/20250429114624.19104-1-sedara@marvell.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Kamal Heib <kheib@redhat.com>

Author: Kamalheib

drivers/net/ethernet/marvell/octeon_ep/octep_main.c

@@ -1223,7 +1223,7 @@ static void octep_hb_timeout_task(struct work_struct *work)
 		miss_cnt);
 	rtnl_lock();
 	if (netif_running(oct->netdev))
-		octep_stop(oct->netdev);
+		dev_close(oct->netdev);
 	rtnl_unlock();
 }