tree 2684f225a60f78bce351a81d33e2d5442ad44031
parent e0513818eeb624fd1e0ee289c790197def476eb0
author Alexander Williams <awill@google.com> 1657845115 -0700
committer Alex Williams <a-will@users.noreply.github.com> 1657903248 -0700

[usb_testutils] Avoid buffer double-free

The control endpoint code had a path that would lead to a double return
of the buffer. Check that the buffer is still active before calling the
DIF to return it.

This case is due to the buffer read function automatically returning the
buffer underneath when all data has been read.

Signed-off-by: Alexander Williams <awill@google.com>