Merge branch 'for-35' of git://repo.or.cz/linux-kbuild

* 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
  kbuild: Revert part of e8d400a to resolve a conflict
  kbuild: Fix checking of scm-identifier variable
  gconfig: add support to show hidden options that have prompts
  menuconfig: add support to show hidden options which have prompts
  gconfig: remove show_debug option
  gconfig: remove dbg_print_ptype() and dbg_print_stype()
  kconfig: fix zconfdump()
  kconfig: some small fixes
  add random binaries to .gitignore
  kbuild: Include gen_initramfs_list.sh and the file list in the .d file
  kconfig: recalc symbol value before showing search results
  .gitignore: ignore *.lzo files
  headerdep: perlcritic warning
  scripts/Makefile.lib: Align the output of LZO
  kbuild: Generate modules.builtin in make modules_install
  Revert "kbuild: specify absolute paths for cscope"
  kbuild: Do not unnecessarily regenerate modules.builtin
  headers_install: use local file handles
  headers_check: fix perl warnings
  export_report: fix perl warnings
  ...

1 files changed, 1 insertions, 2 deletions

diff --git a/scripts/headerdep.pl b/scripts/headerdep.pl
index b7f6c560e24d..8dd019bc5a73 100755
--- a/scripts/headerdep.pl
+++ b/scripts/headerdep.pl
@@ -80,8 +80,7 @@ sub search {
                 my $path = "$i/$filename";
                 return $path if -f $path;
         }
-
-        return undef;
+        return;
 }
 
 sub parse_all {