Patches which both remove and add/modify DT binding files are
incorrectly flagged as needing to split the patch. The issue is the
check sees "dev/null" as one of the files in the patch which is not a DT
binding file. Add "dev/null" to the skipped files.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c0250244cf7a..f42c024fe6ef 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2924,7 +2924,7 @@ sub process {
 			}
 			$checklicenseline = 1;
 
-			if ($realfile !~ /^MAINTAINERS/) {
+			if ($realfile !~ /^(MAINTAINERS|dev\/null)/) {
 				my $last_binding_patch = $is_binding_patch;
 
 				$is_binding_patch = () = $realfile =~ m@^(?:Documentation/devicetree/|include/dt-bindings/)@;
-- 
2.51.0