tree d1b25e3e935a8a96b50d173091e4397e774f3ca6
parent 570a921702d31416aa3a5dc3f1f8c2a31087a5a2
author Abhishek Singh <absingh@qti.qualcomm.com> 1465975317 +0530
committer Anjaneedevi Kapparapu <akappa@codeaurora.org> 1476872896 +0530

wlan: Do not trigger del sta if it is already in progress

qcacld-2.0 to prima propagation

If SAP receive auth from an already connected STA, it post
eWNI_SME_DISASSOC_IND msg to SME to delete the STA context and
return. STA may try to send auth again as it didnt receive auth
resp.

Now many frames (probe req, auth etc) may get accumulated in PE
message queue and unless PE queue is fully processed SME queue will
not be processed and thus del sta will get delayed. This may again
cause STA to send more auth req and every time MC thread process an
auth req before the sta is deleted, eWNI_SME_DISASSOC_IND msg is
posted in SME message queue.

And if PE keeps on getting auth before the sta is deleted,
SME queue will pile up leading to crash.

To fix this do not trigger del sta if it is already in progress.

Change-Id: Icff3778d35ef7ea646463fe49c4335e260e9e156
CRs-Fixed: 982329