Merge "sdcardfs: Fix a case where sdcardfs may fail to create a file"

	/* See if the low-level filesystem might want

	 * to use its own hash

	 */

	lower_dentry = d_hash_and_lookup(lower_dir_dentry, &dname);

	lower_dentry = lookup_one_len_unlocked(dname.name, lower_dir_dentry,

					       dname.len);

	if (IS_ERR(lower_dentry))

		return lower_dentry;

	if (!lower_dentry) {

		/* We called vfs_path_lookup earlier, and did not get a negative

		 * dentry then. Don't confuse the lower filesystem by forcing

		 * one on it now...

		 */

	if (d_really_is_negative(lower_dentry))

		err = -ENOENT;

		goto out;

	}

	lower_path.dentry = lower_dentry;

	lower_path.mnt = mntget(lower_dir_mnt);