qcacld-3.0: Avoid race condition to get pcl while stopping P2P GO
In the case of concurrency, considering STA+P2P-GO, if P2P-GO is
removed, then cds_decr_session_set_pcl() will be called from two
contexts mc_thread and supplicant. Thus, if race occurs, then
cds_store_and_del_conn_info() will remove STA temporarily for one
caller, and it simply returns for second caller. As
cds_conc_connection_info stores garbage values for the second
caller, thus, new interface is created with junk variable.
The change is to avoid the race condition for calling
cds_decr_session_set_pcl() in two contexts. The change is also
to initialize cds_conc_connection_info() with zero before simply
returning because of failure in cds_store_and_del_conn_info() to
avoid creating new interface with junk values.
Change-Id: I7bc4dcea6dfb66954f2cead607eef303df62e6d6
CRs-Fixed: 2009364
2 files changed