tree d48b4ea8eb910cddfe91ee7c7a67f4e65cc0b0b3
parent 682815197312b45f1c57786ed6ec9ef79b3ff382
author Fabio Utzig <fabio.utzig@nordicsemi.no> 1594330807 -0300
committer Fabio Utzig <utzig@utzig.org> 1594375028 -0300

Fix erase of possible trailer leftover after reset

This fixes an issue where an image might be erased, but a trailer left
behind. It can happen if the image in the secondary slot did not pass
validation, in which case the whole slot is erased. If during the erase
operation, a reset occurs, parts of the slot might have been erased
while some have not. The concerning part is the trailer because it
might disable a new image from being loaded through mcumgr; so just get
rid of the trailer here, if the header is erased.

Signed-off-by: Fabio Utzig <fabio.utzig@nordicsemi.no>