[PATCH] drm/tests: Fix incorrect argument in drm_test_mm_insert_range

[Janusz Krzysztofik]

While drm_mm test was converted form igt selftest to kunit, unexpected
value of "end" argument equal "start" was introduced to one of calls to a
function that executes the drm_test_mm_insert_range for specific start/end
pair of arguments.  As a consequence, DRM_MM_BUG_ON(end <= start) is
triggered.  Fix it by restoring the original value.

Fixes: fc8d29e298cf ("drm: selftest: convert drm_mm selftest to KUnit")
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik at linux.intel.com>
Cc: "Maíra Canal" <mairacanal at riseup.net>
Cc: Arthur Grillo <arthurgrillo at riseup.net>
Cc: Javier Martinez Canillas <javierm at redhat.com>
Cc: Daniel Latypov <dlatypov at google.com>
Cc: stable at vger.kernel.org # v6.1+
---
 drivers/gpu/drm/tests/drm_mm_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tests/drm_mm_test.c b/drivers/gpu/drm/tests/drm_mm_test.c
index 186b28dc70380..05d5e7af6d250 100644
--- a/drivers/gpu/drm/tests/drm_mm_test.c
+++ b/drivers/gpu/drm/tests/drm_mm_test.c
@@ -939,7 +939,7 @@ static void drm_test_mm_insert_range(struct kunit *test)
 		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max - 1));
 		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max / 2));
 		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size,
-								    max / 2, max / 2));
+								    max / 2, max));
 		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size,
 								    max / 4 + 1, 3 * max / 4 - 1));
 
-- 
2.41.0