Since this topic is here. There is an error in Makefile when you do a make modules_install. It attempts to delete a directory with a delete file command. This occurs in two places. If you are fixing fix this problem.
Typically, something like that might happen if you are compiling in
a pre-existing environment, where either an old compilation or
someone manually created a directory with the same name as a file
from the current compilation. Such error tends not to self-correct.
The kernel build system builds from scratch so it doesn't see the
problem---I bet if you rm -rf the entire build tree before
rebuilding it'll work for you as well.