tree 64dd5f526e92c55a271ce2749b44c61822671018
parent 02ee7bf29dad865076132b04ff35f53dcc419da6
author Tianjie Xu <xunchang@google.com> 1528243823 -0700
committer Tianjie Xu <xunchang@google.com> 1528243823 -0700

minui: Handle the failures from the drm backend in gr_init

In a charger mode manual test, we encounter failures from the
MinuiBackendDrm when calling DrmEnableCrtc and Flip. To make the minui
more robust, we should fall back to another backend if drm's SetCrtc
fails. And check the value of gr_draw before dereferencing.

Bug: 80249440
Test: boot to recovery
Change-Id: Ibd1ca1fb1115fe1132684586c54eccd8fb4c3ad9