qcacld-3.0: Vdev trans return directly if psoc/driver is in transition
Issue happen when:
thread1:
rmmod driver, wlan_hdd_pld_remove which will get psoc trans.
then try to get rntl_lock in hdd_unregister_wext;
thread2:
trigger iw del interface, cfgops in kernel will get get rtnl_lock,
in wlan_hdd_del_virtual_intf, vdev trans will be blocked by psoc
trans in thread1. as thread1 it is also waiting for rtnl_lock, so
both thread will be stuck.
Fix is:
In psoc trans, vdev trans and vdev ops is not allowed, which should
return directly.
Change-Id: I9cbd04bac438bb9483b4e89e73801fe71859e139
CRs-Fixed: 2583675
2 files changed