vfs: wire up compat ioctl for CLONE/CLONE_RANGE

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/read_write.c b/fs/read_write.c
index c75d02c..60ee269 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1489,7 +1489,7 @@
 	if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode))
 		return -EISDIR;
 	if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode))
-		return -EOPNOTSUPP;
+		return -EINVAL;
 
 	if (!(file_in->f_mode & FMODE_READ) ||
 	    !(file_out->f_mode & FMODE_WRITE) ||