qcacld-3.0: Maintain order of flushing iface_idle_work

Presently as part of the wificond, interface down is getting
serviced by hdd_stop. Concurrently as part of the “rmmod” the
driver tries to flush the idle work. Before the hdd_stop is
completed in the rmmod context the driver unregisters with
platform driver. It waits for the external threads completion in the
__hdd_wlan_exit and once all the external threads are completed
the hdd_exit completes till the module unload and the frees the
hdd context. The iface_idle_work which got scheduled from the
hdd_stop tries to execute which can result in the “use-after-free”.

Solution is to flush the work again after waiting for the external
threads.

Change-Id: I3d4fa28ff311128a72e46632a74ed2b193ad9f2c
CRs-Fixed: 2353979

0 files changed, 0 insertions, 0 deletions