diff options
Diffstat (limited to 'FreeRTOS/Source')
| -rw-r--r-- | FreeRTOS/Source/queue.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/FreeRTOS/Source/queue.c b/FreeRTOS/Source/queue.c index d33db5458..724c43864 100644 --- a/FreeRTOS/Source/queue.c +++ b/FreeRTOS/Source/queue.c @@ -126,13 +126,12 @@ typedef struct QueueDefinition {
signed char *pcHead; /*< Points to the beginning of the queue storage area. */
signed char *pcTail; /*< Points to the byte at the end of the queue storage area. Once more byte is allocated than necessary to store the queue items, this is used as a marker. */
-
signed char *pcWriteTo; /*< Points to the free next place in the storage area. */
union /* Use of a union is an exception to the coding standard to ensure two mutually exclusive structure members don't appear simultaneously (wasting RAM). */
{
signed char *pcReadFrom; /*< Points to the last place that a queued item was read from when the structure is used as a queue. */
- unsigned portBASE_TYPE uxRecursiveCallCount;/*< Maintains a count of the numebr of times a recursive mutex has been recursively 'taken' when the structure is used as a mutex. */
+ unsigned portBASE_TYPE uxRecursiveCallCount;/*< Maintains a count of the number of times a recursive mutex has been recursively 'taken' when the structure is used as a mutex. */
} u;
xList xTasksWaitingToSend; /*< List of tasks that are blocked waiting to post onto this queue. Stored in priority order. */
@@ -1544,7 +1543,10 @@ xQUEUE * const pxQueue = ( xQUEUE * ) xQueue; vQueueUnregisterQueue( pxQueue );
}
#endif
- vPortFree( pxQueue->pcHead );
+ if( pxQueue->pcHead != NULL )
+ {
+ vPortFree( pxQueue->pcHead );
+ }
vPortFree( pxQueue );
}
/*-----------------------------------------------------------*/
|