tree 377948d58574ba1c15f374a297877577cb280de7
parent 6d9d168b0a429b615a055123a9020f496e712bed
author Saurabh Shah <saurshah@codeaurora.org> 1349410091 -0400
committer Iliyan Malchev <malchev@google.com> 1349655617 -0700

hwc: more error checks

-- numHwLayers==1 means that there is only the FB_TARGET which HWC shouldn't
   draw. Also check for blank in set.  Checking for this in prepare prevents us
   from acquiring pipes.
-- add null check for private handle
-- print out vsync timestamp data on error

bug: 7274417
related-to-bug: 7288769
Change-Id: I8dae0d0748c5226fdc33ed8f5cc5259835dec2de
Signed-off-by: Iliyan Malchev <malchev@google.com>