[PATCH] checkpatch: filter null file for dt-binding check

[Zong Li]

When removing a dt-bindings, checkpatch will catch the 'dev/null' file,
and think there is a non-dt-binding file. It causes fail because
/dev/null is not a dt-bindings

Signed-off-by: Zong Li <zong.li@xxxxxxxxxx>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2b812210b412..ac59a48162d2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2896,7 +2896,7 @@ sub process {
 			}
 			$checklicenseline = 1;
 
-			if ($realfile !~ /^MAINTAINERS/) {
+			if (($realfile !~ /^MAINTAINERS/) && ($realfile !~ /^dev\/null$/)) {
 				my $last_binding_patch = $is_binding_patch;
 
 				$is_binding_patch = () = $realfile =~ m@^(?:Documentation/devicetree/|include/dt-bindings/)@;
-- 
2.17.1