tree dd202e76112accef997186c27c5aad52cc9de654
parent 8f618671364e4dc88c58446b4dd96ec06dbd8e2f
author Gunnar Mills <gmills@us.ibm.com> 1508949318 -0500
committer Gunnar Mills <gmills@us.ibm.com> 1509992443 +0000

Always clean up the scratch dir

The scratch directory, holding the extracted squashfs image and
the temporary UBI image, can be quite large, >40MB.
Use trap to make sure it always gets cleaned up.

Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
Change-Id: I0289036dcf2bbf40fc76cf5ebf9dde1d47379435