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Wed, 11 Jun 2025 15:42:44 -0700 (PDT) From: David Lechner Date: Wed, 11 Jun 2025 17:39:06 -0500 Subject: [PATCH 14/28] iio: chemical: sunrise_co2: use = { } instead of memset() 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: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-14-ebb2d0a24302@baylibre.com> References: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-0-ebb2d0a24302@baylibre.com> In-Reply-To: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-0-ebb2d0a24302@baylibre.com> To: Michael Hennerich , Lars-Peter Clausen , Jonathan Cameron , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Matthias Brugger , AngeloGioacchino Del Regno , Heiko Stuebner , Maxime Coquelin , Alexandre Torgue , Francesco Dolcini , =?utf-8?q?Jo=C3=A3o_Paulo_Gon=C3=A7alves?= , =?utf-8?q?Leonard_G=C3=B6hrs?= , kernel@pengutronix.de, Oleksij Rempel , Roan van Dijk , Tomasz Duszynski , Jacopo Mondi , Jean-Baptiste Maneyrol , Mudit Sharma , Javier Carrasco , =?utf-8?q?Ond=C5=99ej_Jirman?= , Andreas Klinger , Petre Rodan Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, David Lechner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1423; i=dlechner@baylibre.com; h=from:subject:message-id; bh=/BUF3sI3UgUZuWXo/TdJaTMxjYqN2OTvccYkHdo0CWU=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBoSgXgx0zbHn3Oo3OHG9JE4qdzOSIeNJ0xKf9sX wnfAW8aNIqJATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaEoF4AAKCRDCzCAB/wGP wKEOB/4rZj/0DQjmcBcARn4a2juCsZtjNAGxZS6Gnnpvb9lBcZ/M7WLd2TJ1FU4tng8kNtGsdpl xxpYcw9zUa03RA+T15dk478hNrBOrf2769q/x+Z1ASRK6yXK3oE8+pjK5cy1Um2YQXRWQEm59/3 /79KeHDmQDe11sPIhDQI+6E6v3n71Dc3Iy4yldkp7noMM0+e6hb79BqwrA5FGzOlOZWqtZlPc2T +cXsU8GS8cJdJPtJ2N+qcs/bXCjapsQgI4a2JVuet7WD3ZhgXF0vk5hcotnb2Rx0o1conJ7TdH3 UiMPLiwJFamoQtn4+HaIKDh9EXnxtMphf1igA9vqBfUQt1tI X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner --- drivers/iio/chemical/sunrise_co2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/iio/chemical/sunrise_co2.c b/drivers/iio/chemical/sunr= ise_co2.c index af79efde37e89170128ef9351bf1ad8b993d4a2d..158be9d798d26199cfb40ef0d29= 4f967ba8a737f 100644 --- a/drivers/iio/chemical/sunrise_co2.c +++ b/drivers/iio/chemical/sunrise_co2.c @@ -51,13 +51,12 @@ static int sunrise_regmap_read(void *context, const voi= d *reg_buf, { struct i2c_client *client =3D context; struct sunrise_dev *sunrise =3D i2c_get_clientdata(client); - union i2c_smbus_data data; + union i2c_smbus_data data =3D { }; int ret; =20 if (reg_size !=3D 1 || !val_size) return -EINVAL; =20 - memset(&data, 0, sizeof(data)); data.block[0] =3D val_size; =20 /* @@ -88,14 +87,13 @@ static int sunrise_regmap_write(void *context, const vo= id *val_buf, size_t count { struct i2c_client *client =3D context; struct sunrise_dev *sunrise =3D i2c_get_clientdata(client); - union i2c_smbus_data data; + union i2c_smbus_data data =3D { }; =20 /* Discard reg address from values count. */ if (!count) return -EINVAL; count--; =20 - memset(&data, 0, sizeof(data)); data.block[0] =3D count; memcpy(&data.block[1], (u8 *)val_buf + 1, count); =20 --=20 2.43.0