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drm/tests: cmdline: Fix drm_display_mode memory leak

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[ Upstream commit 70f29ca3117a8796cd6bde7612a3ded96d0f2dde ]

drm_analog_tv_mode() and its variants return a drm_display_mode that
needs to be destroyed later one. The drm_test_cmdline_tv_options() test
never does however, which leads to a memory leak.

Let's make sure it's freed.

Reported-by: Philipp Stanner <phasta@mailbox.org>
Closes: https://lore.kernel.org/dri-devel/a7655158a6367ac46194d57f4b7433ef0772a73e.camel@mailbox.org/
Fixes: e691c9992a ("drm/modes: Introduce the tv_mode property as a command-line option")
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250408-drm-kunit-drm-display-mode-memleak-v1-4-996305a2e75a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Maxime Ripard
2025-04-08 09:34:10 +02:00
committed by Greg Kroah-Hartman
parent 742a084c6a
commit cea2c8ace7
1 changed files with 9 additions and 1 deletions
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10
drivers/gpu/drm/tests/drm_cmdline_parser_test.c
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@@ -7,6 +7,7 @@
#include <kunit/test.h>
#include <drm/drm_connector.h>
#include <drm/drm_kunit_helpers.h>
#include <drm/drm_modes.h>
static const struct drm_connector no_connector = {};
@@ -955,8 +956,15 @@ struct drm_cmdline_tv_option_test {
static void drm_test_cmdline_tv_options(struct kunit *test)
{
const struct drm_cmdline_tv_option_test *params = test->param_value;
const struct drm_display_mode *expected_mode = params->mode_fn(NULL);
struct drm_display_mode *expected_mode;
struct drm_cmdline_mode mode = { };
int ret;
expected_mode = params->mode_fn(NULL);
KUNIT_ASSERT_NOT_NULL(test, expected_mode);
ret = drm_kunit_add_mode_destroy_action(test, expected_mode);
KUNIT_ASSERT_EQ(test, ret, 0);
KUNIT_EXPECT_TRUE(test, drm_mode_parse_command_line_for_connector(params->cmdline,
&no_connector, &mode));