tree 99dfa033cbbe3a4bc7a1ebb91e966d0b119bba28
parent 5267a21667ab6117cdbb26d054c774b33ab3bb1f
author Ethan Yonker <dees_troy@teamw.in> 1433170500 -0500
committer Ethan Yonker <dees_troy@teamw.in> 1433170504 -0500

Fix double free crash during encrypted backups

Calling flush_libtar_buffer would inadvertantly set buffer_status
when no buffer is currently allocated. Later when we called
free_libtar_buffer, this would attempt to free the write_buffer
and cause a crash. This patch checks the value of buffer_status in
flush_libtar_buffer to prevent us from freeing the buffer when it
is not necessary.

Change-Id: Ic5b462fe5881be6e9c6fcc355b369bc90477f737