break;
                }
 
-               if ((res = kcalloc(1, sizeof(struct resource), GFP_KERNEL)) == NULL) {
+               if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) {
                        printk(KERN_ERR "failed to alocate resource for iomem\n");
                        return;
                }
 
                return;         /*bus # does not exist */
        prom_bussoft_ptr = __va(prom_bussoft_ptr);
 
-       controller = kcalloc(1,sizeof(struct pci_controller), GFP_KERNEL);
+       controller = kzalloc(sizeof(struct pci_controller), GFP_KERNEL);
        controller->segment = segment;
        if (!controller)
                BUG();
 
        if (i > last)
                return 0;
 
-       map = kcalloc(1, sizeof(struct tioce_dmamap), GFP_ATOMIC);
+       map = kzalloc(sizeof(struct tioce_dmamap), GFP_ATOMIC);
        if (!map)
                return 0;
 
        struct tioce *tioce_mmr;
        struct tioce_kernel *tioce_kern;
 
-       tioce_kern = kcalloc(1, sizeof(struct tioce_kernel), GFP_KERNEL);
+       tioce_kern = kzalloc(sizeof(struct tioce_kernel), GFP_KERNEL);
        if (!tioce_kern) {
                return NULL;
        }
         * Allocate kernel bus soft and copy from prom.
         */
 
-       tioce_common = kcalloc(1, sizeof(struct tioce_common), GFP_KERNEL);
+       tioce_common = kzalloc(sizeof(struct tioce_common), GFP_KERNEL);
        if (!tioce_common)
                return NULL;