[PATCH] ubifs: Fix directory size calculation for symlinks

[Richard Weinberger]

We have to account the name of the symlink and not the target length.

Fixes: ca7f85be8d6c ("ubifs: Add support for encrypted symlinks")
Cc: <sta...@vger.kernel.org>
Signed-off-by: Richard Weinberger <rich...@nod.at>
---
 fs/ubifs/dir.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 4e267cc21c77..5c0d9a89663d 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1123,8 +1123,7 @@ static int ubifs_symlink(struct inode *dir, struct dentry 
*dentry,
        struct ubifs_inode *ui;
        struct ubifs_inode *dir_ui = ubifs_inode(dir);
        struct ubifs_info *c = dir->i_sb->s_fs_info;
-       int err, len = strlen(symname);
-       int sz_change = CALC_DENT_SIZE(len);
+       int err, sz_change, len = strlen(symname);
        struct fscrypt_str disk_link;
        struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
                                        .new_ino_d = ALIGN(len, 8),
@@ -1151,6 +1150,8 @@ static int ubifs_symlink(struct inode *dir, struct dentry 
*dentry,
        if (err)
                goto out_budg;
 
+       sz_change = CALC_DENT_SIZE(fname_len(&nm));
+
        inode = ubifs_new_inode(c, dir, S_IFLNK | S_IRWXUGO);
        if (IS_ERR(inode)) {
                err = PTR_ERR(inode);
-- 
2.13.6