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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: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
M Chetan Kumar 2021-08-04 21:39:52 +05:30 committed by David S. Miller
parent c98f5220e9
commit 679505baaa
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wwan/iosm/iosm_ipc_wwan.c
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@ -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);