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Wed, 11 Jun 2025 15:42:41 -0700 (PDT) Received: from [127.0.1.1] ([2600:8803:e7e4:1d00:4753:719f:673f:547c]) by smtp.gmail.com with ESMTPSA id 5614622812f47-40a682fbf05sm24684b6e.32.2025.06.11.15.42.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jun 2025 15:42:40 -0700 (PDT) From: David Lechner Date: Wed, 11 Jun 2025 17:39:04 -0500 Subject: [PATCH 12/28] iio: chemical: scd4x: use = { } instead of memset() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-12-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=810; i=dlechner@baylibre.com; h=from:subject:message-id; bh=w6sewnHJwVlZtUZ1XCEB4lsBcr4uySr0t3enC0nXMgo=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBoSgXTO0fwqvdhMYlsTHXtIYGob2RsszuHsUyLs SfL1LagKj+JATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaEoF0wAKCRDCzCAB/wGP wPZeCACIJ32MRJGFXAWVkUo7XJ8IPrL0OrDOVi8YV9Bz71zO9E1Xbt2tdxaHIRCxRXTjHv0+zxe w/o0PiRItwBJgVkYx0LCNcV0wRJiX/3SOXvkNIYHEjW/6bG5mIuft2mWy9pOWtFB1hHlRO5OHW0 HRZV2jH97fcqcIdH9wSd/O5uzb2vY2Mv537m9vzG3NCE1EZ6ni5m4frRR2Ju3EquwZ5eFRMUZDk 6TffT8htFYg5wCw+GGZ+kUM+ESDQvMFNiOZTKVDPOJtDl6Lepqk3gBrXVA5n8ijfXQPulfkc44L Ad5/aXu1TD4BBvsWqxbL+8KuoPFw5kwu1Q/N4uflwEd9cOV+ X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250611_154242_511534_0EDFC4BC X-CRM114-Status: GOOD ( 12.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner --- drivers/iio/chemical/scd4x.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/chemical/scd4x.c b/drivers/iio/chemical/scd4x.c index 2463149519b6d82caede9c9b253942fa421fdd3c..8859f89fb2a942d940b1ba7adf202977df7b4ad6 100644 --- a/drivers/iio/chemical/scd4x.c +++ b/drivers/iio/chemical/scd4x.c @@ -665,10 +665,9 @@ static irqreturn_t scd4x_trigger_handler(int irq, void *p) struct { uint16_t data[3]; aligned_s64 ts; - } scan; + } scan = { }; int ret; - memset(&scan, 0, sizeof(scan)); mutex_lock(&state->lock); ret = scd4x_read_poll(state, scan.data); mutex_unlock(&state->lock); -- 2.43.0