From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794048164; b=FtyLxEgdaA2OwX1mPPoUwNPs7Fqpu6d/OJIuCqdAiBfikzwK6wPr0KpwH8TRwgZtPO5M 1SnQEWYM2dVV4maEZLJSktu0nUfwLRUZ9EW0yiF8R83KKg3uZb49BybVopBdAVl9oryTW i7lV2chLIfDSMarFVj8lvYs9iROKZS4Rp3gyDBBLwQFprg4GY8VNHBaBWFfhl1UewHb3A NbM3nUwHeGxyyAHkF3YRa2OwDMgwWuTbXQpWHsAZLNaNlihuOgVudcfA3sk446bI40Xi3 KNO0o0hU0wVpiLwLeJECvR36t/GYSw70RD6xYChNIO/hn0/6EKTamRN/JnufAOT8rXQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794048164; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=/8FizENaIlICH5bhKVFVX05JLSzWxvmTad05r4D/+oc=; b=dJRamT+0vggKAq+2HeiGU/c/hgMFxkJm4nTx4zA+LMlYyZZXKXowt3PdSqeXS/HkPlwM 3aseejE4s/xriX1HRht21oh3cjHR8fZs28uelp9AIwWlh15bUxodSFJYDKWtML/E89tsC M2TMSIGzv+JN5s6P5Uny6tonwUPnD40gksfRNNRGf3s+Vja7Sy5pIxpoZW6tuVW+W42n/ OkOflU8+Y0Ah4IUd/XGbc69KK+ZziHDXthAV0wRxf1ZhrfWs7mf2uB/9OWkTc/YoGe3Ax cZOaDrYVQUUymAAUv2who2LVy89+zNhJ/pI6/vgsRMgQZEkd0/fDMBhNAHjmonqrNUQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="SV/8d8hD"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C40C606A326 for ; Sat, 7 Nov 2026 10:42:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=SV/8d8hD Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43DD01F0089F; Sat, 7 Nov 2026 10:42:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794048163; bh=/8FizENaIlICH5bhKVFVX05JLSzWxvmTad05r4D/+oc=; h=From:To:Cc:Subject:Date; b=SV/8d8hDwWGw6rHydztEz3NkzoqmDpi7KNoUlUORLYJiTV6dbvh0s7bMIjRyd5zCL 1G7QBcBM69sSUv4cs+Tok5NTmhpXYJpLKyh+zR/r+VL29xuMPIaUVF0ErlKDRw+ZJJ OfLJndYres9F2srrJQY0vGVDbN9J7alquLBsoVLlIlk5kdrIM+xiBb2TwOOTdHutdW TlHgXaRp4uR1WSQ7IdtOZEAkxBK6LAr3Fr+w9Jv/RLTQh9ojpxmGaJxRDuR5vdNHcK 1aeTuqIS064i1NskizEZcxo0sSbr3MWO9IeJeH3uUrPYoP5PArAeI4HUd2xYYM79Ff Q7sLSnRQRqt7A== From: Sasha Levin To: ruoyuw560@gmail.com, hverkuil+cisco@kernel.org Cc: stable@vger.kernel.org Subject: FAILED: patch "[PATCH] media: adv748x: Fix endpoint reference leaks on probe failure" failed to apply to 6.1-stable tree Date: Sat, 7 Nov 2026 05:42:42 -0500 Message-ID: <20261107054242-failed-6.1-359db09cf055@kernel.org> X-Mailer: git-send-email 2.53.0 X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 359db09cf055497075a668b192f4578a0ed00955 # git commit -s git send-email --to '' --in-reply-to '20261107054242-failed-6.1-359db09cf055@kernel.org' --subject-prefix 'PATCH 6.1.y' 'HEAD^..' Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 359db09cf055497075a668b192f4578a0ed00955 Mon Sep 17 00:00:00 2001 From: Ruoyu Wang Date: Fri, 11 Sep 2026 09:56:40 +0800 Subject: [PATCH] media: adv748x: Fix endpoint reference leaks on probe failure adv748x_parse_dt() takes an extra reference for every endpoint saved in state->endpoints. If parsing later fails, adv748x_probe() skips adv748x_dt_cleanup(), so the saved references remain held. A CSI-2 lane parsing error also returns from for_each_endpoint_of_node() without dropping the iterator's reference. Save the endpoint reference only after lane parsing succeeds. Drop the iterator reference before returning a lane parsing error and route all parse failures through the endpoint cleanup path to release any saved references. This retains the endpoints only for a successful probe. This issue was found by a static analysis checker and confirmed by manual source review. Fixes: 6a18865da8e3 ("media: i2c: adv748x: store number of CSI-2 lanes described in device tree") Fixes: eccf442ce156 ("media: i2c: adv748x: Support probing a single output") Cc: stable@vger.kernel.org Suggested-by: Hans Verkuil Signed-off-by: Ruoyu Wang Signed-off-by: Hans Verkuil --- drivers/media/i2c/adv748x/adv748x-core.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/media/i2c/adv748x/adv748x-core.c b/drivers/media/i2c/adv748x/adv748x-core.c index 3eb6d5e8f0826..70594d0018048 100644 --- a/drivers/media/i2c/adv748x/adv748x-core.c +++ b/drivers/media/i2c/adv748x/adv748x-core.c @@ -675,9 +675,6 @@ static int adv748x_parse_dt(struct adv748x_state *state) continue; } - of_node_get(ep_np); - state->endpoints[ep.port] = ep_np; - /* * At least one input endpoint and one output endpoint shall * be defined. @@ -689,8 +686,13 @@ static int adv748x_parse_dt(struct adv748x_state *state) /* Store number of CSI-2 lanes used for TXA and TXB. */ ret = adv748x_parse_csi2_lanes(state, ep.port, ep_np); - if (ret) + if (ret) { + of_node_put(ep_np); return ret; + } + + of_node_get(ep_np); + state->endpoints[ep.port] = ep_np; } return in_found && out_found ? 0 : -ENODEV; @@ -739,7 +741,7 @@ static int adv748x_probe(struct i2c_client *client) ret = adv748x_parse_dt(state); if (ret) { adv_err(state, "Failed to parse device tree"); - goto err_free_mutex; + goto err_cleanup_dt; } /* Configure IO Regmap region */ @@ -809,7 +811,6 @@ static int adv748x_probe(struct i2c_client *client) adv748x_unregister_clients(state); err_cleanup_dt: adv748x_dt_cleanup(state); -err_free_mutex: mutex_destroy(&state->mutex); return ret; -- 2.53.0