tree d85e74bf4a848f5044fd2ebed1bccb81fd7f83e2
parent 62a31e94a7b99083787e16106e022e0bb9c5f295
author Heinrich Schuchardt <heinrich.schuchardt@canonical.com> 1692695420 +0200
committer Heinrich Schuchardt <heinrich.schuchardt@canonical.com> 1693117267 +0200

lib: parameter check in hash_calculate

If hash_calculate is invoked with region_count = 0, it will try to hash
INT_MAX regions. We should check this parameter.

* Avoid a comparison with different signedness.
* Check that region_count is at least 1.
* Avoid a superfluous assignment.

Fixes: b37b46f042cc ("rsa: Use checksum algorithms from struct hash_algo")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>