From 2e34f82ba214134ecf590fbe0cdbd87401645a8a Mon Sep 17 00:00:00 2001
From: Guodong Liu <Guodong.Liu@mediatek.com>
Date: Wed, 18 Jan 2023 14:20:36 +0800
Subject: [PATCH] pinctrl: mediatek: Initialize variable *buf to zero
Git-commit: 2e34f82ba214134ecf590fbe0cdbd87401645a8a
Patch-mainline: v6.3-rc1
References: git-fixes
Coverity spotted that *buf is not initialized to zero in
mtk_pctrl_dbg_show. Using uninitialized variable *buf as argument to %s
when calling seq_printf. Fix this coverity by initializing *buf as zero.
Fixes: 184d8e13f9b1 ("pinctrl: mediatek: Add support for pin configuration dump via debugfs.")
Signed-off-by: Guodong Liu <Guodong.Liu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230118062036.26258-3-Guodong.Liu@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/pinctrl/mediatek/pinctrl-paris.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index bc0bf5aedc54..33d6c3fb7908 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -717,7 +717,7 @@ static void mtk_pctrl_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
unsigned int gpio)
{
struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
- char buf[PIN_DBG_BUF_SZ];
+ char buf[PIN_DBG_BUF_SZ] = { 0 };
(void)mtk_pctrl_show_one_pin(hw, gpio, buf, PIN_DBG_BUF_SZ);
--
2.35.3