linux-kernel - [PATCH 19/28] iio: light: ltr501: use = { } instead of memset()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-19-ebb2d0a24302@baylibre.com>
Date: Wed, 11 Jun 2025 17:39:11 -0500
From: David Lechner <dlechner@...libre.com>
To: Michael Hennerich <michael.hennerich@...log.com>, 
 Lars-Peter Clausen <lars@...afoo.de>, Jonathan Cameron <jic23@...nel.org>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Heiko Stuebner <heiko@...ech.de>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Francesco Dolcini <francesco@...cini.it>, 
 João Paulo Gonçalves <jpaulo.silvagoncalves@...il.com>, 
 Leonard Göhrs <l.goehrs@...gutronix.de>, 
 kernel@...gutronix.de, Oleksij Rempel <o.rempel@...gutronix.de>, 
 Roan van Dijk <roan@...tonic.nl>, 
 Tomasz Duszynski <tomasz.duszynski@...akon.com>, 
 Jacopo Mondi <jacopo@...ndi.org>, 
 Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>, 
 Mudit Sharma <muditsharma.info@...il.com>, 
 Javier Carrasco <javier.carrasco.cruz@...il.com>, 
 Ondřej Jirman <megi@....cz>, 
 Andreas Klinger <ak@...klinger.de>, 
 Petre Rodan <petre.rodan@...dimension.ro>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, 
 linux-stm32@...md-mailman.stormreply.com, 
 David Lechner <dlechner@...libre.com>
Subject: [PATCH 19/28] iio: light: ltr501: use = { } instead of memset()

Use { } instead of memset() to zero-initialize stack memory to simplify
the code.

Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/iio/light/ltr501.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index db0cc3642bd8010358de8515c24337d7385bce38..c14767472fbe8620ad59c8417d2ceff14f9485a6 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1279,14 +1279,12 @@ static irqreturn_t ltr501_trigger_handler(int irq, void *p)
 	struct {
 		u16 channels[3];
 		aligned_s64 ts;
-	} scan;
+	} scan = { };
 	__le16 als_buf[2];
 	u8 mask = 0;
 	int j = 0;
 	int ret, psdata;
 
-	memset(&scan, 0, sizeof(scan));
-
 	/* figure out which data needs to be ready */
 	if (test_bit(0, indio_dev->active_scan_mask) ||
 	    test_bit(1, indio_dev->active_scan_mask))

-- 
2.43.0