if (!panelp) {
                        printk("STALLION: failed to allocate memory "
                                "(size=%Zd)\n", sizeof(struct stlpanel));
+                       retval = -ENOMEM;
                        goto err_fr;
                }
                panelp->magic = STL_PANELMAGIC;
                brdp->nrports += panelp->nrports;
                brdp->panels[panelnr++] = panelp;
                if ((brdp->brdtype != BRD_ECHPCI) &&
-                   (ioaddr >= (brdp->ioaddr2 + brdp->iosize2)))
+                   (ioaddr >= (brdp->ioaddr2 + brdp->iosize2))) {
+                       retval = -EINVAL;
                        goto err_fr;
+               }
        }
 
        brdp->nrpanels = panelnr;
                dev_err(&pdev->dev, "too many boards found, "
                        "maximum supported %d\n", STL_MAXBRDS);
                mutex_unlock(&stl_brdslock);
+               retval = -ENODEV;
                goto err_fr;
        }
        brdp->brdnr = (unsigned int)brdnr;