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This could happen in case of problems at MTD level or invalid DT bindings. Signed-off-by: John Thomson Fixes: d5542923f200 ("nvmem: add driver handling U-Boot environment variabl= es") [rmilecki: simplify commit description & rebase] Signed-off-by: Rafa=C5=82 Mi=C5=82ecki Signed-off-by: Srinivas Kandagatla --- drivers/nvmem/u-boot-env.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/nvmem/u-boot-env.c b/drivers/nvmem/u-boot-env.c index 936e39b20b38..593f0bf4a395 100644 --- a/drivers/nvmem/u-boot-env.c +++ b/drivers/nvmem/u-boot-env.c @@ -176,6 +176,13 @@ static int u_boot_env_parse(struct u_boot_env *priv) data_offset =3D offsetof(struct u_boot_env_image_broadcom, data); break; } + + if (dev_size < data_offset) { + dev_err(dev, "Device too small for u-boot-env\n"); + err =3D -EIO; + goto err_kfree; + } + crc32_addr =3D (__le32 *)(buf + crc32_offset); crc32 =3D le32_to_cpu(*crc32_addr); crc32_data_len =3D dev_size - crc32_data_offset; --=20 2.25.1 From nobody Fri Dec 19 10:43:35 2025 Received: from mail-ed1-f46.google.com (mail-ed1-f46.google.com [209.85.208.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9268119C564 for ; 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Mon, 02 Sep 2024 07:25:15 -0700 (PDT) Received: from localhost.localdomain ([5.133.47.210]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5c226c6a3f5sm5308881a12.2.2024.09.02.07.25.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Sep 2024 07:25:15 -0700 (PDT) From: srinivas.kandagatla@linaro.org To: gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, Geert Uytterhoeven , Srinivas Kandagatla Subject: [PATCH 2/3] nvmem: Fix return type of devm_nvmem_device_get() in kerneldoc Date: Mon, 2 Sep 2024 15:25:09 +0100 Message-Id: <20240902142510.71096-3-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240902142510.71096-1-srinivas.kandagatla@linaro.org> References: <20240902142510.71096-1-srinivas.kandagatla@linaro.org> 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" From: Geert Uytterhoeven devm_nvmem_device_get() returns an nvmem device, not an nvmem cell. Fixes: e2a5402ec7c6d044 ("nvmem: Add nvmem_device based consumer apis.") Signed-off-by: Geert Uytterhoeven Signed-off-by: Srinivas Kandagatla --- drivers/nvmem/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 516dfd861b9f..33ffa2aa4c11 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -1276,13 +1276,13 @@ void nvmem_device_put(struct nvmem_device *nvmem) EXPORT_SYMBOL_GPL(nvmem_device_put); =20 /** - * devm_nvmem_device_get() - Get nvmem cell of device form a given id + * devm_nvmem_device_get() - Get nvmem device of device form a given id * * @dev: Device that requests the nvmem device. * @id: name id for the requested nvmem device. * - * Return: ERR_PTR() on error or a valid pointer to a struct nvmem_cell - * on success. The nvmem_cell will be freed by the automatically once the + * Return: ERR_PTR() on error or a valid pointer to a struct nvmem_device + * on success. 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Fixes: c7f99cd8fb6b ("dt-bindings: nvmem: Convert xlnx,zynqmp-nvmem.txt to = yaml") Signed-off-by: Michal Simek Acked-by: Rob Herring (Arm) Signed-off-by: Srinivas Kandagatla --- Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml= b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml index 917c40d5c382..1cbe44ab23b1 100644 --- a/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml +++ b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml @@ -28,7 +28,7 @@ unevaluatedProperties: false =20 examples: - | - nvmem { + soc-nvmem { compatible =3D "xlnx,zynqmp-nvmem-fw"; nvmem-layout { compatible =3D "fixed-layout"; --=20 2.25.1