Use non-zero subkey to skip analyzer warnings.

Reported-by: syzbot+c2ada45c23d98d646118@syzkaller.appspotmail.com
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
 fs/ntfs3/ntfs_fs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 4e363b8342d6..898c742fca14 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -334,7 +334,7 @@ struct mft_inode {
 
 /* Nested class for ntfs_inode::ni_lock. */
 enum ntfs_inode_mutex_lock_class {
-	NTFS_INODE_MUTEX_DIRTY,
+	NTFS_INODE_MUTEX_DIRTY = 1,
 	NTFS_INODE_MUTEX_SECURITY,
 	NTFS_INODE_MUTEX_OBJID,
 	NTFS_INODE_MUTEX_REPARSE,
-- 
2.34.1