netdev: ehea: locking order correction

Nested locks always need to be taken in the same order.  This change factors
out the ehea_fw_handles.lock to make the locking order consistent.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Cc: Christoph Raisch <raisch@de.ibm.com>
Cc: Jan-Bernd Themann <themann@de.ibm.com>
Cc: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 4ae65e8..0cfc7e2 100644 (file)
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -2567,14 +2567,14 @@ static int ehea_down(struct net_device *dev)
        if (port->state == EHEA_PORT_DOWN)
                return 0;
 
+       mutex_lock(&ehea_fw_handles.lock);
+
        down(&ehea_bcmc_regs.lock);
        ehea_drop_multicast_list(dev);
        ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
 
        ehea_free_interrupts(dev);
 
-       mutex_lock(&ehea_fw_handles.lock);
-
        port->state = EHEA_PORT_DOWN;
 
        ehea_update_bcmc_registrations();