unicode-add-missing-utf8lookup-check

   1 unicode: add missing check for an error return from utf8lookup()
   2
   3 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
   4 Cc: Gabriel Krisman Bertazi <krisman@collabora.com>
   5 ---
   6  fs/unicode/utf8-norm.c | 2 ++
   7  1 file changed, 2 insertions(+)
   8
   9 diff --git a/fs/unicode/utf8-norm.c b/fs/unicode/utf8-norm.c
  10 index 20d440c3f2db..801ed6d2ea37 100644
  11 --- a/fs/unicode/utf8-norm.c
  12 +++ b/fs/unicode/utf8-norm.c
  13 @@ -714,6 +714,8 @@ int utf8byte(struct utf8cursor *u8c)
  14                         }
  15
  16                         leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);
  17 +                       if (!leaf)
  18 +                               return -1;
  19                         ccc = LEAF_CCC(leaf);
  20                 }
  21