tree 75440e73d85593836fe5e731c7ea7f245fe833bd
parent 9670a8906c064828ffe807e9a0300ed8c57eb6eb
author Ramkumar Radhakrishnan <ramkumar@codeaurora.org> 1412821225 -0700
committer Ramkumar Radhakrishnan <ramkumar@codeaurora.org> 1412821225 -0700

hwc: Acquire and Release mDrawlock properly to prevent deadlock

HDMI Online and offline event, UEvent thread acquires mDrawLock and
mStateLock sequentially. At the same time surfaceflinger draw thread
acquires mStateLock and mDrawLock in the reverse sequence which
results in deadlock condition. So release the mDrawLock immediately
after modifying the hwc context variables in UEvent thread.

Change-Id: I6a240294a28d8e9a9aca6f98522c7265b3cad4fa