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bh=0cIzziXQXBlswI5he/Z1p9UVN9gXfIafkur4yQLuNKM=; b=WlStTxqGzva9+UFSYhFfXw4/eyvnNhgwpre83ebDV7irThXx3jpNRYnWO16QrVNcMMUvPa FtqvwIEFzz1tDTi3nQMemL7s2ni2N5ABm2DKLe/xjA9s9AGh/vfXXFmQ+Ix5neYQpUggUE ZkZ21Yrus5l3d9xGjFkYkOvTZpps9BvhfTY2TQgvgGgOjnl7ZVfUyrQEb88q3IfxCsNhlP OFyLzhp9rcJGWmKKtalqgU7Zg963yUOKfMu+Yf0/VXh1SnUEd9dPdKa1GHuQ5iAzalT8L2 gWTTR+Ma0QEQnp454zzEqKiIy5BYmW0LpXZy4mqze37S9YM/iIdSVAQFxUomwQ== From: Luca Ceresoli To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sasha Finkelstein , Janne Grunau , Liu Ying , Douglas Anderson , Laurentiu Palcu , Lucas Stach , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Philipp Zabel , Paul Cercueil , Anitha Chrisanthus , Chun-Kuang Hu , Matthias Brugger , AngeloGioacchino Del Regno , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Tomi Valkeinen , Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Andy Yan , Thierry Reding , Mikko Perttunen , Jonathan Hunter , Icenowy Zheng , Jingoo Han , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Marek Vasut , Stefan Agner , Jyri Sarha , Michal Simek Cc: Hui Pu , Ian Ray , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, asahi@lists.linux.dev, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-tegra@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Luca Ceresoli Subject: [PATCH v2 41/41] drm: renesas: shmobile: remove now-redundant call to drm_connector_attach_encoder() Date: Thu, 23 Apr 2026 13:55:50 +0200 Message-ID: <20260423115550.444930-7-luca.ceresoli@bootlin.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260423-drm-bridge-connector-attach_encoder-v2-0-2ae6ca69b390@bootlin.com> References: <20260423-drm-bridge-connector-attach_encoder-v2-0-2ae6ca69b390@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260423_045929_585181_498E0C9D X-CRM114-Status: GOOD ( 14.33 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org shmob_drm_connector_create() can init the connector in two ways, based on the 'if (sdev->pdata)': 1. manually in shmob_drm_connector_create(), or 2. delegating to drm_bridge_connector_init() Whichever branch is taken, drm_connector_attach_encoder() is called immediately after to attach the connector to the encoder. Now drm_bridge_connector_init() calls drm_connector_attach_encoder() on the connector so it is not needed anymore in case 2 and should be removed, but it is still needed in case 1. Move drm_connector_attach_encoder() from the common path to inside shmob_drm_connector_create() in order to get back to a single drm_connector_attach_encoder() in both cases. Signed-off-by: Luca Ceresoli --- Changes in v2: - rewrote completely, fixing potential ERR_PTR deref and ending up with a cleaner patch - also wrote more extensive commit message --- .../gpu/drm/renesas/shmobile/shmob_drm_crtc.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c index 5f460b38596c..815c770147ed 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c @@ -583,6 +583,13 @@ shmob_drm_connector_init(struct shmob_drm_device *sdev, drm_connector_helper_add(connector, &connector_helper_funcs); + ret = drm_connector_attach_encoder(connector, encoder); + if (ret < 0) { + drm_connector_cleanup(connector); + kfree(scon); + return ERR_PTR(ret); + } + return connector; } @@ -594,7 +601,6 @@ int shmob_drm_connector_create(struct shmob_drm_device *sdev, struct drm_encoder *encoder) { struct drm_connector *connector; - int ret; if (sdev->pdata) connector = shmob_drm_connector_init(sdev, encoder); @@ -606,17 +612,9 @@ int shmob_drm_connector_create(struct shmob_drm_device *sdev, return PTR_ERR(connector); } - ret = drm_connector_attach_encoder(connector, encoder); - if (ret < 0) - goto error; - connector->dpms = DRM_MODE_DPMS_OFF; sdev->connector = connector; return 0; - -error: - drm_connector_cleanup(connector); - return ret; } -- 2.53.0