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Mon, 27 Oct 2025 01:43:15 -0700 (PDT) Received: from localhost.localdomain ([124.77.218.104]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-29498e3d2aasm75349815ad.88.2025.10.27.01.43.11 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 27 Oct 2025 01:43:14 -0700 (PDT) From: Miaoqian Lin To: Neil Armstrong , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Nicolas Belin , Jagan Teki , dri-devel@lists.freedesktop.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: linmq006@gmail.com, stable@vger.kernel.org Subject: [PATCH] drm/meson: Fix reference count leak in meson_encoder_dsi_probe Date: Mon, 27 Oct 2025 16:42:58 +0800 Message-Id: <20251027084258.79180-1-linmq006@gmail.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The of_graph_get_remote_node() function returns a device node with its reference count incremented. The caller is responsible for calling of_node_put() to release this reference when done. Fixes: 42dcf15f901c ("drm/meson: add DSI encoder") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin Reviewed-by: Neil Armstrong --- drivers/gpu/drm/meson/meson_encoder_dsi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/meson/meson_encoder_dsi.c b/drivers/gpu/drm/me= son/meson_encoder_dsi.c index 6c6624f9ba24..01edf46e30d0 100644 --- a/drivers/gpu/drm/meson/meson_encoder_dsi.c +++ b/drivers/gpu/drm/meson/meson_encoder_dsi.c @@ -121,6 +121,7 @@ int meson_encoder_dsi_probe(struct meson_drm *priv) } =20 meson_encoder_dsi->next_bridge =3D of_drm_find_bridge(remote); + of_node_put(remote); if (!meson_encoder_dsi->next_bridge) return dev_err_probe(priv->dev, -EPROBE_DEFER, "Failed to find DSI transceiver bridge\n"); --=20 2.39.5 (Apple Git-154)