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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 4ae65e876487..0cfc7e2ce395 100644
--- 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();