tree c4e83746e10573f82adf458736c032da07217b49
parent 52ee85cf6fe58983c92235a4df6e4fe627dced54
author Jinwei Chen <jinweic@codeaurora.org> 1575018695 +0800
committer nshrivas <nshrivas@codeaurora.org> 1575625959 -0800

qcacmn: fix dp vdev use after free for monitor mode

Crash scenario:
a. monitor mode dp_vdev is freed in dp_vdev_detach_wifi3 without
   checking whether any dp_peer is associated.
b. monitor mode self dp_peer do peer clean up when HTT peer
   unmap MSG received, invalid accessing to dp_vdev as it has been
   freed in step (a).

Check if there is dp_peer associated for monitor mode dp_vdev,
skip dp_vdev free, when all dp_peer is freed, dp_delete_pending_vdev
will free dp_vdev.

Change-Id: Iea4b0efc6e7bbd4109d9cd0b109dfddf727a9fff
CRs-Fixed: 2576604