Void a few unused return values and make casting more C++ friendly.

FreeRTOS/Source/croutine.c

@@ -201,7 +201,7 @@ portTickType xTimeToWake;
 	/* We must remove ourselves from the ready list before adding
 	ourselves to the blocked list as the same list item is used for
 	both lists. */
-	uxListRemove( ( xListItem * ) &( pxCurrentCoRoutine->xGenericListItem ) );
+	( void ) uxListRemove( ( xListItem * ) &( pxCurrentCoRoutine->xGenericListItem ) );
 
 	/* The list item will be inserted in wake time order. */
 	listSET_LIST_ITEM_VALUE( &( pxCurrentCoRoutine->xGenericListItem ), xTimeToWake );
@@ -241,11 +241,11 @@ static void prvCheckPendingReadyList( void )
 		portDISABLE_INTERRUPTS();
 		{
 			pxUnblockedCRCB = ( corCRCB * ) listGET_OWNER_OF_HEAD_ENTRY( (&xPendingReadyCoRoutineList) );
-			uxListRemove( &( pxUnblockedCRCB->xEventListItem ) );
+			( void ) uxListRemove( &( pxUnblockedCRCB->xEventListItem ) );
 		}
 		portENABLE_INTERRUPTS();
 
-		uxListRemove( &( pxUnblockedCRCB->xGenericListItem ) );
+		( void ) uxListRemove( &( pxUnblockedCRCB->xGenericListItem ) );
 		prvAddCoRoutineToReadyQueue( pxUnblockedCRCB );
 	}
 }
@@ -296,7 +296,7 @@ corCRCB *pxCRCB;
 				/* Is the co-routine waiting on an event also? */
 				if( pxCRCB->xEventListItem.pvContainer )
 				{
-					uxListRemove( &( pxCRCB->xEventListItem ) );
+					( void ) uxListRemove( &( pxCRCB->xEventListItem ) );
 				}
 			}
 			portENABLE_INTERRUPTS();
@@ -368,7 +368,7 @@ signed portBASE_TYPE xReturn;
 	event lists and the pending ready list.  This function assumes that a
 	check has already been made to ensure pxEventList is not empty. */
 	pxUnblockedCRCB = ( corCRCB * ) listGET_OWNER_OF_HEAD_ENTRY( pxEventList );
-	uxListRemove( &( pxUnblockedCRCB->xEventListItem ) );
+	( void ) uxListRemove( &( pxUnblockedCRCB->xEventListItem ) );
 	vListInsertEnd( ( xList * ) &( xPendingReadyCoRoutineList ), &( pxUnblockedCRCB->xEventListItem ) );
 
 	if( pxUnblockedCRCB->uxPriority >= pxCurrentCoRoutine->uxPriority )

FreeRTOS/Source/include/semphr.h

@@ -121,7 +121,7 @@ typedef xQueueHandle xSemaphoreHandle;
 		( xSemaphore ) = xQueueGenericCreate( ( unsigned portBASE_TYPE ) 1, semSEMAPHORE_QUEUE_ITEM_LENGTH, queueQUEUE_TYPE_BINARY_SEMAPHORE );	\
 		if( ( xSemaphore ) != NULL )																											\
 		{																																		\
-			xSemaphoreGive( ( xSemaphore ) );																									\
+			( void ) xSemaphoreGive( ( xSemaphore ) );																									\
 		}																																		\
 	}
 

FreeRTOS/Source/queue.c

@@ -824,7 +824,7 @@ xQUEUE * const pxQueue = ( xQUEUE * ) xQueue;
 							{
 								/* Record the information required to implement
 								priority inheritance should it become necessary. */
-								pxQueue->pxMutexHolder = ( void * ) xTaskGetCurrentTaskHandle();
+								pxQueue->pxMutexHolder = ( signed char * ) xTaskGetCurrentTaskHandle();
 							}
 						}
 						#endif
@@ -1073,7 +1073,7 @@ xQUEUE * const pxQueue = ( xQUEUE * ) xQueue;
 						{
 							/* Record the information required to implement
 							priority inheritance should it become necessary. */
-							pxQueue->pxMutexHolder = ( void * ) xTaskGetCurrentTaskHandle(); /*lint !e961 Cast is not redundant as xTaskHandle is a typedef. */
+							pxQueue->pxMutexHolder = ( signed char * ) xTaskGetCurrentTaskHandle(); /*lint !e961 Cast is not redundant as xTaskHandle is a typedef. */
 						}
 					}
 					#endif
@@ -1742,7 +1742,7 @@ signed portBASE_TYPE xReturn;
 					pxQueue->u.pcReadFrom = pxQueue->pcHead;
 				}
 				--( pxQueue->uxMessagesWaiting );
-				memcpy( ( void * ) pvBuffer, ( void * ) pxQueue->u.pcReadFrom, ( unsigned ) pxQueue->uxItemSize );
+				( void ) memcpy( ( void * ) pvBuffer, ( void * ) pxQueue->u.pcReadFrom, ( unsigned ) pxQueue->uxItemSize );
 
 				xReturn = pdPASS;
 
@@ -1822,7 +1822,7 @@ signed portBASE_TYPE xReturn;
 				pxQueue->u.pcReadFrom = pxQueue->pcHead;
 			}
 			--( pxQueue->uxMessagesWaiting );
-			memcpy( ( void * ) pvBuffer, ( void * ) pxQueue->u.pcReadFrom, ( unsigned ) pxQueue->uxItemSize );
+			( void ) memcpy( ( void * ) pvBuffer, ( void * ) pxQueue->u.pcReadFrom, ( unsigned ) pxQueue->uxItemSize );
 
 			if( ( *pxCoRoutineWoken ) == pdFALSE )
 			{

FreeRTOS/Source/tasks.c

@@ -2182,7 +2182,7 @@ static portTASK_FUNCTION( prvIdleTask, pvParameters )
 						traceLOW_POWER_IDLE_END();
 					}
 				}
-				xTaskResumeAll();
+				( void ) xTaskResumeAll();
 			}
 		}
 		#endif /* configUSE_TICKLESS_IDLE */