if ((buffer_size - length <= 0) || (i >= num_envp))
                return -ENOMEM;
 
+       envp[i++] = scratch;
+       length += scnprintf (scratch, buffer_size - length,
+                           "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x\n",
+                           pdev->vendor, pdev->device,
+                           pdev->subsystem_vendor, pdev->subsystem_device,
+                           (u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
+                           (u8)(pdev->class));
+       if ((buffer_size - length <= 0) || (i >= num_envp))
+               return -ENOMEM;
+
        envp[i] = NULL;
 
        return 0;