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kunit: string-stream: Allow ERR_PTR to be passed to string_stream_destroy() 

Check the stream pointer passed to string_stream_destroy() for
IS_ERR_OR_NULL() instead of only NULL.

Whatever alloc_string_stream() returns should be safe to pass
to string_stream_destroy(), and that will be an ERR_PTR.

It's obviously good practise and generally helpful to also check
for NULL pointers so that client cleanup code can call
string_stream_destroy() unconditionally - which could include
pointers that have never been set to anything and so are NULL.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Richard Fitzgerald 2023-10-30 10:47:46 +00:00 committed by Shuah Khan
parent 37f0d37ffc
commit 15bf000014
1 changed files with 1 additions and 1 deletions
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2
lib/kunit/string-stream.c
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@ -173,7 +173,7 @@ void string_stream_destroy(struct string_stream *stream)
{
KUNIT_STATIC_STUB_REDIRECT(string_stream_destroy, stream);
if (!stream)
if (IS_ERR_OR_NULL(stream))
return;
string_stream_clear(stream);