iio_dmaengine_buffer_free  208 drivers/iio/buffer/industrialio-buffer-dmaengine.c EXPORT_SYMBOL_GPL(iio_dmaengine_buffer_free);
iio_dmaengine_buffer_free   15 include/linux/iio/buffer-dmaengine.h void iio_dmaengine_buffer_free(struct iio_buffer *buffer);