When STA receives a connect req (C1) and it requires hw mode
change. Now the hw mode change resp will take the SME global
lock and call connection manager API, which will try to
acquire CM lock.
But if before that one more connect req (C2) is received in
another thread which has acquired CM lock before C1 can
acquire it, and this connect req C2 will also flush the C1
from CM queue. Now if C2 also require hw mode change, which
also require to acquire SME global lock.
So both connect will wait for each other to complete, leading
to deadlock.
To fix this, from hw mode change response, break the context
(by posting to scheduler thread) so that sme global lock is
released and C2 is processed.
As C1 is already flushed by C2, on scheduler thread execution
once it get CM lock it will be dropped silently, and C2 will
proceed with connect.
Change-Id: I14efb0f21442edcae90a4abea20cb0b9e06a0758
CRs-Fixed: 3223786
1d58140b54