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[79.54.50.21]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38f258b44b2sm18336665f8f.20.2025.02.19.10.58.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Feb 2025 10:58:58 -0800 (PST) From: Angelo Dureghello X-Google-Original-From: Angelo Dureghello Date: Wed, 19 Feb 2025 19:57:43 +0100 Subject: [PATCH] iio: dac: adi-axi-dac: add io_mode check Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250219-wip-bl-axi-dac-add-enum-check-v1-1-8de9db0b3b1b@baylibre.com> X-B4-Tracking: v=1; b=H4sIAKYptmcC/x3MTQqDMBAG0KvIrPuBiVi1Vyku8jPVQU0loVUQ7 25w+TbvoMRRONGrOCjyX5J8Q4Z6FORGEwaG+GzSpa5LrTpsssLOMLvAGwfjPTj8FriR3YTW2qd qdFs3XUX5WCN/ZL//d3+eF/ahDhtvAAAA X-Change-ID: 20250219-wip-bl-axi-dac-add-enum-check-8bb617285793 To: Nuno Sa , Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Angelo Dureghello X-Mailer: b4 0.14.2 From: Angelo Dureghello Add safe check to the high bound of the enum values, Signed-off-by: Angelo Dureghello --- drivers/iio/dac/adi-axi-dac.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/dac/adi-axi-dac.c b/drivers/iio/dac/adi-axi-dac.c index 009fb987e1afd04c3dbc59a9742f7982744420c2..892d770aec69c4259de77705880= 1c9ab33c79923 100644 --- a/drivers/iio/dac/adi-axi-dac.c +++ b/drivers/iio/dac/adi-axi-dac.c @@ -728,6 +728,9 @@ static int axi_dac_bus_set_io_mode(struct iio_backend *= back, struct axi_dac_state *st =3D iio_backend_get_priv(back); int ival, ret; =20 + if (mode > AD3552R_IO_MODE_QSPI) + return -EINVAL; + guard(mutex)(&st->lock); =20 ret =3D regmap_update_bits(st->regmap, AXI_DAC_CUSTOM_CTRL_REG, --- base-commit: 4dd0ce442fa57f5274878c89223362344f28224c change-id: 20250219-wip-bl-axi-dac-add-enum-check-8bb617285793 Best regards, --=20 Angelo Dureghello