* @substream: the substream to allocate the DMA buffer to
* @size: the requested buffer size in bytes
*
- * Allocates the DMA buffer on the BUS type given by
+ * Allocates the DMA buffer on the BUS type given earlier to
* snd_pcm_lib_preallocate_xxx_pages().
*
* Returns 1 if the buffer is changed, 0 if not changed, or a negative