fix a crasher in surfaceflinger

this would happen if being told to draw before a buffer
was available.

Change-Id: I46d121c73e883078cdbf952063e38b0076f79038
1 file changed
tree: bd521e20c20110e557c9c11281cfb1ae172de380
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. MODULE_LICENSE_APACHE2
  7. NOTICE