[PATCH] erofs: fix match_table with a NULL terminated pattern

[Gao Xiang]

Without a NULL terminated pattern, it could cause memory
access violation.

Signed-off-by: Gao Xiang <gaoxian...@huawei.com>
---
 fs/erofs/super.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 0dcf9c7..de8ee81 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -173,13 +173,15 @@ static void default_options(struct erofs_sb_info *sbi)
 enum {
        Opt_user_xattr,
        Opt_acl,
-       Opt_fault_injection
+       Opt_fault_injection,
+       Opt_err
 };
 
 static match_table_t erofs_tokens = {
        {Opt_user_xattr, "user_xattr"},
        {Opt_acl, "acl"},
        {Opt_fault_injection, "fault_injection=%u"},
+       {Opt_err, NULL}
 };
 
 static int parse_options(struct super_block *sb, char *options)
-- 
1.9.1