The PTR_ERR(NULL) here is not useful.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
        }
 
        pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL);
-       if (!pdrvdata.debugfs_dir) {
-               pr_warning("Error %ld creating debugfs dir for virtio-ports\n",
-                          PTR_ERR(pdrvdata.debugfs_dir));
-       }
+       if (!pdrvdata.debugfs_dir)
+               pr_warning("Error creating debugfs dir for virtio-ports\n");
        INIT_LIST_HEAD(&pdrvdata.consoles);
        INIT_LIST_HEAD(&pdrvdata.portdevs);