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From: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	 Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	 David Airlie <airlied@gmail.com>,
	Simona Vetter <simona@ffwll.ch>,
	 Dave Stevenson <dave.stevenson@raspberrypi.com>,
	 Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org,
	 linux-kernel@vger.kernel.org,
	 AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>
Subject: [PATCH v2 0/2] Fixup drm_atomic_helper_connector_hdmi_check()
Date: Thu, 09 Jan 2025 00:03:38 +0200	[thread overview]
Message-ID: <20250109-hdmi-conn-null-mode-v2-0-9eeaf1109547@collabora.com> (raw)

Fix a NULL pointer dereference discovered while unloading a DRM module
and provide a couple of tests to make sure the helper works as expected
in case the connector's CRTC is shut down.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
---
Changes in v2:
- Collected R-b tags from Dmitry and Angelo
- Add a 2nd patch providing a couple of KUnit tests (Maxime)
- Link to v1: https://lore.kernel.org/r/20250107-hdmi-conn-null-mode-v1-1-fff4be46d106@collabora.com

---
Cristian Ciocaltea (2):
      drm/connector: hdmi: Handle NULL display mode in state check helper
      drm/tests: hdmi: Add connector's CRTC deactivation tests

 drivers/gpu/drm/display/drm_hdmi_state_helper.c    |   3 +
 drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 173 +++++++++++++++++++++
 2 files changed, 176 insertions(+)
---
base-commit: 938fbb16aba8f7b88e0fdcf56f315a5bbad41aad
change-id: 20250107-hdmi-conn-null-mode-be0c5e49ed8c


             reply	other threads:[~2025-01-08 22:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-08 22:03 Cristian Ciocaltea [this message]
2025-01-08 22:03 ` [PATCH v2 1/2] drm/connector: hdmi: Handle NULL display mode in state check helper Cristian Ciocaltea
2025-01-08 22:03 ` [PATCH v2 2/2] drm/tests: hdmi: Add connector's CRTC deactivation tests Cristian Ciocaltea
2025-01-14 17:41   ` Maxime Ripard
2025-01-14 17:58     ` Cristian Ciocaltea

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