checkpatch: comment detection: ignore macro continuation when detecting associated comments

When looking for an associated comment they may be suffixed by a macro
continuation.  Ignore this.

Signed-off-by: Andy Whitcroft <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index fd597a4b..94250d1 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -631,7 +631,7 @@
 	my ($first_line, $end_line) = @_;
 
 	# Catch a comment on the end of the line itself.
-	my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*$@);
+	my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(?:\\\s*)?$@);
 	return $current_comment if (defined $current_comment);
 
 	# Look through the context and try and figure out if there is a