Remove access check from ISR function (#1127)

Author: kar-rahul-aws

portable/Common/mpu_wrappers_v2.c

@@ -3838,27 +3838,16 @@
             BaseType_t xReturn = pdFALSE;
             TimerHandle_t xInternalTimerHandle = NULL;
             int32_t lIndex;
-            BaseType_t xIsHigherPriorityTaskWokenWriteable = pdFALSE;
 
-            if( pxHigherPriorityTaskWoken != NULL )
-            {
-                xIsHigherPriorityTaskWokenWriteable = xPortIsAuthorizedToAccessBuffer( pxHigherPriorityTaskWoken,
-                                                                                       sizeof( BaseType_t ),
-                                                                                       tskMPU_WRITE_PERMISSION );
-            }
+            lIndex = ( int32_t ) xTimer;
 
-            if( ( pxHigherPriorityTaskWoken == NULL ) || ( xIsHigherPriorityTaskWokenWriteable == pdTRUE ) )
+            if( IS_EXTERNAL_INDEX_VALID( lIndex ) != pdFALSE )
             {
-                lIndex = ( int32_t ) xTimer;
+                xInternalTimerHandle = MPU_GetTimerHandleAtIndex( CONVERT_TO_INTERNAL_INDEX( lIndex ) );
 
-                if( IS_EXTERNAL_INDEX_VALID( lIndex ) != pdFALSE )
+                if( xInternalTimerHandle != NULL )
                 {
-                    xInternalTimerHandle = MPU_GetTimerHandleAtIndex( CONVERT_TO_INTERNAL_INDEX( lIndex ) );
-
-                    if( xInternalTimerHandle != NULL )
-                    {
-                        xReturn = xTimerGenericCommandFromISR( xInternalTimerHandle, xCommandID, xOptionalValue, pxHigherPriorityTaskWoken, xTicksToWait );
-                    }
+                    xReturn = xTimerGenericCommandFromISR( xInternalTimerHandle, xCommandID, xOptionalValue, pxHigherPriorityTaskWoken, xTicksToWait );
                 }
             }