[nrf fromlist] bootutil: swap_scratch: Fix scratch scrambling #509
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This commit fixes the scrambling of the scratch area after persisting a trailer to the primary slot. Previous use of boot_erase_region() didn't guarantee that the scratch area is scrambled, as it only erases memory for devices that selects CONFIG_MCUBOOT_STORAGE_WITH_ERASE. Signed-off-by: Michal Kozikowski <[email protected]> (cherry picked from commit 800868a)
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This PR fixes the scrambling of the scratch area after persisting a trailer to the primary slot. Previous use of boot_erase_region() didn't guarantee that the scratch area is scrambled, as it only erases memory for devices that selects CONFIG_MCUBOOT_STORAGE_WITH_ERASE.
Upstream PR #: 2418