ext4: memory leak on error in ext4_symlink()

We should release "sd" before returning.

Fixes: 0fa12ad1b285 ('ext4: Handle error from dquot_initialize()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jan Kara <jack@suse.com>

fs/ext4/namei.c

@@ -3084,7 +3084,7 @@ static int ext4_symlink(struct inode *dir,
 
 	err = dquot_initialize(dir);
 	if (err)
-		return err;
+		goto err_free_sd;
 
 	if ((disk_link.len > EXT4_N_BLOCKS * 4)) {
 		/*