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Sun, 19 Apr 2026 23:53:15 -0700 (PDT) Received: from localhost.localdomain ([1.226.165.54]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b5fa9ff390sm91821395ad.9.2026.04.19.23.53.12 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 19 Apr 2026 23:53:15 -0700 (PDT) From: Myeonghun Pak To: Neil Armstrong Cc: Myeonghun Pak , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Ijae Kim , Taegyu Kim , Yuho Choi Subject: [PATCH] drm/panel: jdi-fhd-r63452: remove panel on DSI attach failure Date: Mon, 20 Apr 2026 15:52:15 +0900 Message-ID: <20260420065305.8781-1-mhun512@gmail.com> X-Mailer: git-send-email 2.47.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The probe path calls drm_panel_add() before mipi_dsi_attach(). If mipi_dsi_attach() fails, the driver returns without calling drm_panel_remove(), leaving the panel registered in the global DRM panel list. The driver's .remove() callback does not handle this case because failed probe does not transition through the normal bound-device removal path. Fix this by unwinding drm_panel_add() when mipi_dsi_attach() fails. Co-developed-by: Ijae Kim Signed-off-by: Ijae Kim Co-developed-by: Taegyu Kim Signed-off-by: Taegyu Kim Co-developed-by: Yuho Choi Signed-off-by: Yuho Choi Signed-off-by: Myeonghun Pak --- drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c b/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c index cbe354b51..4356c07c4 100644 --- a/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c +++ b/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c @@ -205,6 +205,7 @@ static int jdi_fhd_r63452_probe(struct mipi_dsi_device *dsi) ret = mipi_dsi_attach(dsi); if (ret < 0) { dev_err(dev, "Failed to attach to DSI host: %d\n", ret); + drm_panel_remove(&ctx->panel); return ret; } -- 2.47.1