tree 0c1e1de4b22223d854e7e92724c7eff7ccadda75
parent 91478db1e723dcec674f5eaa4fd97ff6007efa5a
author Sunil Khatri <sunilkh@codeaurora.org> 1465856594 -0700
committer Thierry Strudel <tstrudel@google.com> 1465929409 +0000

msm: kgsl: Defer adding the mem entry to a process

If we add the mem entry pointer in the process idr and rb tree
too early, other threads can do operations on the entry by
guessing the ID or GPU address before the object gets returned
by the creating operation.

Allocate an ID for the object but don't assign the pointer until
right before the creating function returns ensuring that another
operation can't access it until it is ready.

Bug: 28026365
Bug: 28377352
CRs-Fixed: 1002974
Change-Id: Ic0dedbadc0dd2125bd2a7bcc152972c0555e07f8
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Sunil Khatri <sunilkh@codeaurora.org>
Signed-off-by: Santhosh Punugu <spunug@codeaurora.org>