[components / drivers]fixed re-include of audio
/**
* Pipe Device
*/
-#include <rtthread.h>
#include <rtdevice.h>
#ifndef RT_PIPE_BUFSZ
@@ -71,6 +70,6 @@ rt_err_t rt_audio_pipe_detach(struct rt_audio_pipe *pipe);
#ifdef RT_USING_HEAP
rt_err_t rt_audio_pipe_create(const char *name, rt_int32_t flag, rt_size_t size);
void rt_audio_pipe_destroy(struct rt_audio_pipe *pipe);
-#endif
-#endif
+#endif /* RT_USING_HEAP */
+#endif /* __AUDIO_PIPE_H__ */
