checkpatch: a modifier is not an identifier at the end of a type

We must make sure we do not misrecognise a modifier as an Identifier
when trying to match types.  Prevent us matching this:

	void * __ref
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

scripts/checkpatch.pl

@@ -1686,8 +1686,8 @@ sub process {
 			# Modifiers should have spaces.
 			$to =~ s/(\b$Modifier$)/$1 /;
 
-			#print "from<$from> to<$to>\n";
-			if ($from ne $to) {
+			#print "from<$from> to<$to> ident<$ident>\n";
+			if ($from ne $to && $ident !~ /^$Modifier$/) {
 				ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" .  $herecurr);
 			}
 		}