linux-kernel - [PATCH] staging: fbtft: change snprintf() to scnprintf()

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Message-Id: <20210402090501.152561-1-zhangxuezhi3@gmail.com>
Date:   Fri,  2 Apr 2021 09:05:01 +0000
From:   Carlis <zhangxuezhi3@...il.com>
To:     gregkh@...uxfoundation.org, zhangxuezhi1@...ong.com
Cc:     dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org
Subject: [PATCH] staging: fbtft: change snprintf() to scnprintf()

From: Xuezhi Zhang <zhangxuezhi1@...ong.com>

show() must not use snprintf() when formatting the value to
be returned to user space.

Signed-off-by: Xuezhi Zhang <zhangxuezhi1@...ong.com>
---
 drivers/staging/fbtft/fbtft-sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/fbtft/fbtft-sysfs.c b/drivers/staging/fbtft/fbtft-sysfs.c
index 26e52cc2de64..7df92db648d6 100644
--- a/drivers/staging/fbtft/fbtft-sysfs.c
+++ b/drivers/staging/fbtft/fbtft-sysfs.c
@@ -199,7 +199,7 @@ static ssize_t show_debug(struct device *device,
 	struct fb_info *fb_info = dev_get_drvdata(device);
 	struct fbtft_par *par = fb_info->par;
 
-	return snprintf(buf, PAGE_SIZE, "%lu\n", par->debug);
+	return scnprintf(buf, PAGE_SIZE, "%lu\n", par->debug);
 }
 
 static struct device_attribute debug_device_attr =
-- 
2.25.1