checkpatch: ## is not a valid modifier

Inserting a # into the modifiers list will incorrectly add the null string
to the modifiers list, leading to an infinite loop.  As neither of these
is a valid modifier form simply ignore them.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4c53d6f67339..b4390cf818da 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1224,7 +1224,9 @@ sub possible {
                         case|
                         else|
                         asm|__asm__|
-                        do
+                        do|
+                        \#|
+                        \#\#|
                 )(?:\s|$)|
                 ^(?:typedef|struct|enum)\b
             )}x;