Commit 679505ba authored by M Chetan Kumar's avatar M Chetan Kumar Committed by David S. Miller
Browse files

net: wwan: iosm: fix recursive lock acquire in unregister 



Calling unregister_netdevice() inside wwan del link is trying to
acquire the held lock in ndo_stop_cb(). Instead, queue net dev to
be unregistered later.

Signed-off-by: default avatarM Chetan Kumar <m.chetan.kumar@linux.intel.com>
Reviewed-by: default avatarLoic Poulain <loic.poulain@linaro.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c98f5220

drivers/net/wwan/iosm/iosm_ipc_wwan.c

+1 −1
Original line number Diff line number Diff line
@@ -228,7 +228,7 @@ static void ipc_wwan_dellink(void *ctxt, struct net_device *dev, 


	RCU_INIT_POINTER(ipc_wwan->sub_netlist[if_id], NULL);

	/* unregistering includes synchronize_net() */

	unregister_netdevice(dev);

	unregister_netdevice_queue(dev, head);



unlock:

	mutex_unlock(&ipc_wwan->if_mutex);