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The xtensa free_initrd_mem() verifies that initrd is mapped and then frees its memory using free_reserved_area(). The initrd is considered mapped when its memory was successfully reserved with mem_reserve(). Resetting initrd_start to 0 in case of mem_reserve() failure allows to switch to generic free_initrd_mem() implementation. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Message-Id: <1563977432-8376-1-git-send-email-rppt@linux.ibm.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>