linux-kernel - [PATCH 5.4 144/183] backlight: lm3630a: Initialize backlight

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Message-ID: <20240324234638.1355609-145-sashal@kernel.org>
Date: Sun, 24 Mar 2024 19:45:57 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Luca Weiss <luca@...tu.xyz>,
	Daniel Thompson <daniel.thompson@...aro.org>,
	Lee Jones <lee@...nel.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 144/183] backlight: lm3630a: Initialize backlight_properties on init

From: Luca Weiss <luca@...tu.xyz>

[ Upstream commit ad9aeb0e3aa90ebdad5fabf9c21783740eb95907 ]

The backlight_properties struct should be initialized to zero before
using, otherwise there will be some random values in the struct.

Fixes: 0c2a665a648e ("backlight: add Backlight driver for lm3630 chip")
Signed-off-by: Luca Weiss <luca@...tu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>
Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-1-9ca62f7e4a33@z3ntu.xyz
Signed-off-by: Lee Jones <lee@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/video/backlight/lm3630a_bl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 8096202fbe5d5..a381b3990986d 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -337,6 +337,7 @@ static int lm3630a_backlight_register(struct lm3630a_chip *pchip)
 	struct backlight_properties props;
 	const char *label;
 
+	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	if (pdata->leda_ctrl != LM3630A_LEDA_DISABLE) {
 		props.brightness = pdata->leda_init_brt;
-- 
2.43.0