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185d57797c
The real kfree() function will silently return when given a NULL. So a user might reasonably think they can write the following code: char *buffer = NULL; if (param->use_buffer) buffer = kunit_kzalloc(test, 10, GFP_KERNEL); ... kunit_kfree(test, buffer); As-is, kunit_kfree() will mark the test as FAILED when buffer is NULL. (And in earlier times, it would segfault). Let's match the semantics of kfree(). Suggested-by: David Gow <davidgow@google.com> Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>