linux-kernel - [PATCH RESEND 4/4] backlight: mp3309c: Fully initialize backlight

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Date: Tue, 20 Feb 2024 15:35:27 +0000
From: Daniel Thompson <daniel.thompson@...aro.org>
To: Lee Jones <lee@...nel.org>,
	Jingoo Han <jingoohan1@...il.com>
Cc: Daniel Thompson <daniel.thompson@...aro.org>,
	Luca Weiss <luca@...tu.xyz>,
	dri-devel@...ts.freedesktop.org,
	linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH RESEND 4/4] backlight: mp3309c: Fully initialize backlight_properties during probe

props is stack allocated and, although this driver initializes all the
fields that are not "owned" by the framework, we'd still like to ensure
it is zeroed to avoid problems from this driver if the fields change.

Signed-off-by: Daniel Thompson <daniel.thompson@...aro.org>
---
 drivers/video/backlight/mp3309c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c
index 34d71259fac1d..cdf302d6f1cb5 100644
--- a/drivers/video/backlight/mp3309c.c
+++ b/drivers/video/backlight/mp3309c.c
@@ -373,6 +373,7 @@ static int mp3309c_probe(struct i2c_client *client)
 	chip->pdata = pdata;
 
 	/* Backlight properties */
+	memset(&props, 0, sizeof(struct backlight_properties));
 	props.brightness = pdata->default_brightness;
 	props.max_brightness = pdata->max_brightness;
 	props.scale = BACKLIGHT_SCALE_LINEAR;
-- 
2.43.0