5253 kmem_alloc/kmem_zalloc won't fail with KM_SLEEP
5254 getrbuf won't fail with KM_SLEEP

@@ -6192,14 +6192,10 @@
         int i;
 
         softs->total_slots = softs->aac_max_fibs;
         softs->io_slot = kmem_zalloc(sizeof (struct aac_slot) * \
             softs->total_slots, KM_SLEEP);
-        if (softs->io_slot == NULL) {
-                AACDB_PRINT(softs, CE_WARN, "Cannot allocate slot");
-                return (AACERR);
-        }
         for (i = 0; i < softs->total_slots; i++)
                 softs->io_slot[i].index = i;
         softs->free_io_slot_head = NULL;
         softs->total_fibs = 0;
         return (AACOK);