the file_data_sink_impl::put() code assumes it is always called on buffers
with size multiple of dma alignment (4096), except the *last* one. After
writing one unaligned-size buffer, further writes cannot continue because
the offset into the file no longer has the right alignment! If a caller
does try to do that, there is a bug in the caller (it's not a run-time error,
it's a design bug), and better discover it quickly with an assert, as I do
in this patch.
I had such a caller in an example application, and it took me a whole day
of debugging just to figure out that this is where the caller actually had
a bug.
Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
Reviewed-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
f687ec40a3