diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
index d7fbf5f4600f36..f99954dbfdb587 100644
--- a/drivers/staging/erofs/inode.c
+++ b/drivers/staging/erofs/inode.c
@@ -185,16 +185,16 @@ static int fill_inode(struct inode *inode, int isdir)
 		/* setup the new inode */
 		if (S_ISREG(inode->i_mode)) {
 #ifdef CONFIG_EROFS_FS_XATTR
-			if (vi->xattr_isize)
-				inode->i_op = &erofs_generic_xattr_iops;
+			inode->i_op = &erofs_generic_xattr_iops;
 #endif
 			inode->i_fop = &generic_ro_fops;
 		} else if (S_ISDIR(inode->i_mode)) {
 			inode->i_op =
 #ifdef CONFIG_EROFS_FS_XATTR
-				vi->xattr_isize ? &erofs_dir_xattr_iops :
-#endif
+				&erofs_dir_xattr_iops;
+#else
 				&erofs_dir_iops;
+#endif
 			inode->i_fop = &erofs_dir_fops;
 		} else if (S_ISLNK(inode->i_mode)) {
 			/* by default, page_get_link is used for symlink */
diff --git a/drivers/staging/erofs/xattr.c b/drivers/staging/erofs/xattr.c
index 59bc5641c4e762..1c9498e38f0e92 100644
--- a/drivers/staging/erofs/xattr.c
+++ b/drivers/staging/erofs/xattr.c
@@ -56,7 +56,26 @@ static int init_inode_xattrs(struct inode *inode)
 		return 0;
 
 	vi = EROFS_V(inode);
-	BUG_ON(!vi->xattr_isize);
+
+	/*
+	 * bypass all xattr operations if ->xattr_isize is not greater than
+	 * sizeof(struct erofs_xattr_ibody_header), in detail:
+	 * 1) it is not enough to contain erofs_xattr_ibody_header then
+	 *    ->xattr_isize should be 0 (it means no xattr);
+	 * 2) it is just to contain erofs_xattr_ibody_header, which is on-disk
+	 *    undefined right now (maybe use later with some new sb feature).
+	 */
+	if (vi->xattr_isize == sizeof(struct erofs_xattr_ibody_header)) {
+		errln("xattr_isize %d of nid %llu is not supported yet",
+		      vi->xattr_isize, vi->nid);
+		return -ENOTSUPP;
+	} else if (vi->xattr_isize < sizeof(struct erofs_xattr_ibody_header)) {
+		if (unlikely(vi->xattr_isize)) {
+			DBG_BUGON(1);
+			return -EIO;	/* xattr ondisk layout error */
+		}
+		return -ENOATTR;
+	}
 
 	sb = inode->i_sb;
 	sbi = EROFS_SB(sb);
@@ -424,7 +443,6 @@ static int erofs_xattr_generic_get(const struct xattr_handler *handler,
 		struct dentry *unused, struct inode *inode,
 		const char *name, void *buffer, size_t size)
 {
-	struct erofs_vnode *const vi = EROFS_V(inode);
 	struct erofs_sb_info *const sbi = EROFS_I_SB(inode);
 
 	switch (handler->flags) {
@@ -442,9 +460,6 @@ static int erofs_xattr_generic_get(const struct xattr_handler *handler,
 		return -EINVAL;
 	}
 
-	if (!vi->xattr_isize)
-		return -ENOATTR;
-
 	return erofs_getxattr(inode, handler->flags, name, buffer, size);
 }