erofs: save one level of indentation

As Christoph said [1], ".. and save one
level of indentation."

[1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-22-gaoxiang25@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fs/erofs/inode.c

@@ -193,41 +193,42 @@ static int erofs_fill_inode(struct inode *inode, int isdir)
 	data = page_address(page);
 
 	err = erofs_read_inode(inode, data + ofs);
-	if (!err) {
-		/* setup the new inode */
-		switch (inode->i_mode & S_IFMT) {
-		case S_IFREG:
-			inode->i_op = &erofs_generic_iops;
-			inode->i_fop = &generic_ro_fops;
-			break;
-		case S_IFDIR:
-			inode->i_op = &erofs_dir_iops;
-			inode->i_fop = &erofs_dir_fops;
-			break;
-		case S_IFLNK:
-			err = erofs_fill_symlink(inode, data, ofs);
-			if (err)
-				goto out_unlock;
-			inode_nohighmem(inode);
-			break;
-		case S_IFCHR:
-		case S_IFBLK:
-		case S_IFIFO:
-		case S_IFSOCK:
-			inode->i_op = &erofs_generic_iops;
-			init_special_inode(inode, inode->i_mode, inode->i_rdev);
-			goto out_unlock;
-		default:
-			err = -EFSCORRUPTED;
+	if (err)
+		goto out_unlock;
+
+	/* setup the new inode */
+	switch (inode->i_mode & S_IFMT) {
+	case S_IFREG:
+		inode->i_op = &erofs_generic_iops;
+		inode->i_fop = &generic_ro_fops;
+		break;
+	case S_IFDIR:
+		inode->i_op = &erofs_dir_iops;
+		inode->i_fop = &erofs_dir_fops;
+		break;
+	case S_IFLNK:
+		err = erofs_fill_symlink(inode, data, ofs);
+		if (err)
 			goto out_unlock;
-		}
+		inode_nohighmem(inode);
+		break;
+	case S_IFCHR:
+	case S_IFBLK:
+	case S_IFIFO:
+	case S_IFSOCK:
+		inode->i_op = &erofs_generic_iops;
+		init_special_inode(inode, inode->i_mode, inode->i_rdev);
+		goto out_unlock;
+	default:
+		err = -EFSCORRUPTED;
+		goto out_unlock;
+	}
 
-		if (erofs_inode_is_data_compressed(vi->datalayout)) {
-			err = z_erofs_fill_inode(inode);
-			goto out_unlock;
-		}
-		inode->i_mapping->a_ops = &erofs_raw_access_aops;
+	if (erofs_inode_is_data_compressed(vi->datalayout)) {
+		err = z_erofs_fill_inode(inode);
+		goto out_unlock;
 	}
+	inode->i_mapping->a_ops = &erofs_raw_access_aops;
 
 out_unlock:
 	unlock_page(page);