diff --git a/src/bucoord/dump.c b/src/bucoord/dump.c
index 36fc6ac5d9..03578888c4 100644
--- a/src/bucoord/dump.c
+++ b/src/bucoord/dump.c
@@ -225,7 +225,7 @@ bc_DmpRstStart(void *param)
 	free(tdump->portOffset);
     tdump->flags &= ~BC_DI_INUSE;
 
-    return code;
+    return (void *)code;
 }
 
 /* bc_StartDmpRst
diff --git a/src/butc/lwps.c b/src/butc/lwps.c
index 2096845e54..8c7eb3ca9b 100644
--- a/src/butc/lwps.c
+++ b/src/butc/lwps.c
@@ -1920,7 +1920,7 @@ Restorer(void *param) {
 
     FreeNode(taskId);
     LeaveDeviceQueue(deviceLatch);
-    return (code);
+    return (void *)(code);
 }
 
 /* this is just scaffolding, creates new tape label with name <tapeName> */
@@ -2282,7 +2282,7 @@ Labeller(void *param)
 
     free(labelIfPtr);
     LeaveDeviceQueue(deviceLatch);
-    return (code);
+    return (void *)(code);
 }
 
 /* PrintTapeLabel
diff --git a/src/butc/tcudbprocs.c b/src/butc/tcudbprocs.c
index 48f6bf8583..3b1bf8527f 100644
--- a/src/butc/tcudbprocs.c
+++ b/src/butc/tcudbprocs.c
@@ -744,7 +744,7 @@ saveDbToTape(void *param)
 
     free(saveDbIfPtr);
     LeaveDeviceQueue(deviceLatch);
-    return (code);
+    return (void *)(code);
 }
 
 struct rstTapeInfo {
diff --git a/src/rx/rx_kcommon.c b/src/rx/rx_kcommon.c
index f74f7de9e0..5f208d1e9c 100644
--- a/src/rx/rx_kcommon.c
+++ b/src/rx/rx_kcommon.c
@@ -291,6 +291,8 @@ rx_ServerProc(void *unused)
 #ifdef RX_ENABLE_LOCKS
     AFS_GLOCK();
 #endif /* RX_ENABLE_LOCKS */
+
+    return NULL;
 }
 #endif /* !UKERNEL */
 
diff --git a/src/ubik/beacon.c b/src/ubik/beacon.c
index 937d54d9e8..a507a8c484 100644
--- a/src/ubik/beacon.c
+++ b/src/ubik/beacon.c
@@ -465,6 +465,7 @@ ubeacon_Interact(void *dummy)
 	}
 
     }				/* while loop */
+    return NULL;
 }
 
 /* 
diff --git a/src/ubik/recovery.c b/src/ubik/recovery.c
index 6b346d1229..b0ba2fbc62 100644
--- a/src/ubik/recovery.c
+++ b/src/ubik/recovery.c
@@ -832,6 +832,7 @@ urecovery_Interact(void *dummy)
 		urecovery_state |= UBIK_RECSENTDB;
 	}
     }
+    return NULL;
 }
 
 /*