diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 2b257e4f17df..d6c486e9501c 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -424,7 +424,7 @@ struct parisc_device * create_tree_node(char id, struct device *parent)
 	/* make the generic dma mask a pointer to the parisc one */
 	dev->dev.dma_mask = &dev->dma_mask;
 	dev->dev.coherent_dma_mask = dev->dma_mask;
-	if (!device_register(&dev->dev)) {
+	if (device_register(&dev->dev)) {
 		kfree(dev);
 		return NULL;
 	}
@@ -853,9 +853,9 @@ static void print_parisc_device(struct parisc_device *dev)
  */
 void init_parisc_bus(void)
 {
-	if (!bus_register(&parisc_bus_type))
+	if (bus_register(&parisc_bus_type))
 		panic("Could not register PA-RISC bus type\n");
-	if (!device_register(&root))
+	if (device_register(&root))
 		panic("Could not register PA-RISC root device\n");
 	get_device(&root);
 }