arm64: wipe old initrd addresses when patching the DTB

When copying the DTB from the current kernel, if the user didn't pass an
initrd on the command-line, make sure that the new DTB doesn't contain
initrd properties with stale addresses. Otherwise the next kernel will
try to unpack the initramfs from a location that contains junk, since
the initial initrd is long gone:

[   49.370026] Initramfs unpacking failed: junk in compressed archive

This issue used to be hidden by a successful recovery, but since commit
ff1522bb7d98 ("initramfs: cleanup incomplete rootfs") in Linux, the
kernel removes the default /root mountpoint after failing to load an
initramfs, and cannot mount the rootfs passed on the command-line
anymore.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions