[PATCH AUTOSEL 6.1 08/10] kunit: alloc_string_stream_fragment error handling bug fix

[Sasha Levin]

From: "YoungJun.park" <her0gyugyu@xxxxxxxxx>

[ Upstream commit 93ef83050e597634d2c7dc838a28caf5137b9404 ]

When it fails to allocate fragment, it does not free and return error.
And check the pointer inappropriately.

Fixed merge conflicts with
commit 618887768bb7 ("kunit: update NULL vs IS_ERR() tests")
Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>

Signed-off-by: YoungJun.park <her0gyugyu@xxxxxxxxx>
Reviewed-by: David Gow <davidgow@xxxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 lib/kunit/string-stream.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/kunit/string-stream.c b/lib/kunit/string-stream.c
index a608746020a9..7aeabe1a3dc5 100644
--- a/lib/kunit/string-stream.c
+++ b/lib/kunit/string-stream.c
@@ -23,8 +23,10 @@ static struct string_stream_fragment *alloc_string_stream_fragment(
 		return ERR_PTR(-ENOMEM);
 
 	frag->fragment = kunit_kmalloc(test, len, gfp);
-	if (!frag->fragment)
+	if (!frag->fragment) {
+		kunit_kfree(test, frag);
 		return ERR_PTR(-ENOMEM);
+	}
 
 	return frag;
 }
-- 
2.35.1