tree ede3164408ecf287743a7938dd61437ccccb4d92
parent 4f898d4e332067e11f47056410284accc63f57a7
author David Anderson <dvander@google.com> 1616562133 -0700
committer David Anderson <dvander@google.com> 1616617527 -0700

libsnapshot: Ensure we can remove bad snapshots when beginning an update.

If somehow we wind up with snapshots with a source suffix, we could wind
up trying to unmap an in-use partition. Detect this case and allow the
snapshot to be deleted without the unmap.

Bug: 183567503
Test: vts_libsnapshot_test
Change-Id: I87dd5bb3a7b9be59dede624924374ccc47b563c2