fix to tools

src/include/sof/audio/component.h

@@ -649,6 +649,7 @@ static inline struct comp_buffer *comp_dev_get_first_data_producer(struct comp_d
 /**
  * Get a pointer to the next comp_buffer object providing data to the component
  * The function will return NULL if there're no more data providers
+ * _save version also checks if producer != NULL
  */
 static inline struct comp_buffer *comp_dev_get_next_data_producer(struct comp_dev *component,
 								  struct comp_buffer *producer)
@@ -657,6 +658,12 @@ static inline struct comp_buffer *comp_dev_get_next_data_producer(struct comp_de
 	       list_item(producer->sink_list.next, struct comp_buffer, sink_list);
 }
 
+static inline struct comp_buffer *comp_dev_get_next_data_producer_safe(struct comp_dev *component,
+								  struct comp_buffer *producer)
+{
+	return producer ? comp_dev_get_next_data_producer(component, producer) : NULL;
+}
+
 /**
  * Get a pointer to the first comp_buffer object receiving data from the component
  * The function will return NULL if there's no data consumers
@@ -670,6 +677,7 @@ static inline struct comp_buffer *comp_dev_get_first_data_consumer(struct comp_d
 /**
  * Get a pointer to the next comp_buffer object receiving data from the component
  * The function will return NULL if there're no more data consumers
+ * _safe version also checks if consumer is != NULL
  */
 static inline struct comp_buffer *comp_dev_get_next_data_consumer(struct comp_dev *component,
 								  struct comp_buffer *consumer)
@@ -678,6 +686,12 @@ static inline struct comp_buffer *comp_dev_get_next_data_consumer(struct comp_de
 			list_item(consumer->source_list.next, struct comp_buffer, source_list);
 }
 
+static inline struct comp_buffer *comp_dev_get_next_data_consumer_safe(struct comp_dev *component,
+								       struct comp_buffer *consumer)
+{
+	return consumer ? comp_dev_get_next_data_consumer(component, consumer) : NULL;
+}
+
 /*
  * a macro for easy iteration through component's list of producers
  */
@@ -692,12 +706,12 @@ static inline struct comp_buffer *comp_dev_get_next_data_consumer(struct comp_de
  *
  * additional "safe storage" pointer to struct comp_buffer must be provided
  */
-#define comp_dev_for_each_producer_safe(_dev, _producer, _next_producer)	\
-	for (_producer = comp_dev_get_first_data_producer(_dev),		\
-	     _next_producer = comp_dev_get_next_data_producer(_dev, _producer);	\
-	     _producer != NULL;							\
-	     _producer = _next_producer,					\
-	     _next_producer = comp_dev_get_next_data_producer(_dev, _producer))
+#define comp_dev_for_each_producer_safe(_dev, _producer, _next_producer)		\
+	for (_producer = comp_dev_get_first_data_producer(_dev),			\
+	     _next_producer = comp_dev_get_next_data_producer_safe(_dev, _producer);	\
+	     _producer != NULL;								\
+	     _producer = _next_producer,						\
+	     _next_producer = comp_dev_get_next_data_producer_safe(_dev, _producer))
 
 /*
  * a macro for easy iteration through component's list of consumers
@@ -713,12 +727,12 @@ static inline struct comp_buffer *comp_dev_get_next_data_consumer(struct comp_de
  *
  * additional "safe storage" pointer to struct comp_buffer must be provided
  */
-#define comp_dev_for_each_consumer_safe(_dev, _consumer, _next_consumer)	\
-	for (_consumer = comp_dev_get_first_data_consumer(_dev),		\
-	     _next_consumer = comp_dev_get_next_data_consumer(_dev, _consumer);	\
-	     _consumer != NULL;							\
-	     _consumer = _next_consumer,					\
-	     _next_consumer = comp_dev_get_next_data_consumer(_dev, _consumer))
+#define comp_dev_for_each_consumer_safe(_dev, _consumer, _next_consumer)		\
+	for (_consumer = comp_dev_get_first_data_consumer(_dev),			\
+	     _next_consumer = comp_dev_get_next_data_consumer_safe(_dev, _consumer);	\
+	     _consumer != NULL;								\
+	     _consumer = _next_consumer,						\
+	     _next_consumer = comp_dev_get_next_data_consumer_safe(_dev, _consumer))
 
 /** @}*/