Scott Shawcroft a5520f8a3d
Set the terminal tilegrid NULL after free
Without this, a double free can occur when a display (and terminal)
is released and then a crash occurs. Upon a second release,
different memory is released (sometimes the heap). When this is
followed by an allocation for the flash cache, the cache can
overwrite the active heap causing crashes.

Fixes #1667
2019-04-03 15:24:15 -07:00
..
2018-08-07 14:58:57 -07:00
2019-03-12 11:18:30 -07:00