checkpatch: handle comment/quote nesting correctly

Ensure that a close comment cannot incorrectly trigger in the middle of a
string.  Reported by Jaswinder Singh.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Jaswinder Singh <jaswinder@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 5382f72..18646f0 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -335,7 +335,7 @@ sub sanitise_line {
                        $off++;
                        next;
                }
-               if (substr($line, $off, 2) eq '*/') {
+               if ($sanitise_quote eq '*/' && substr($line, $off, 2) eq '*/') {
                        $sanitise_quote = '';
                        substr($res, $off, 2, "$;$;");
                        $off++;