linux-kernel - [PATCH AUTOSEL 5.15 10/98] ptp: replace snprintf with sysfs

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Message-Id: <20220401143742.1952163-10-sashal@kernel.org>
Date:   Fri,  1 Apr 2022 10:36:14 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Yang Guang <yang.guang5@....com.cn>,
        Zeal Robot <zealci@....com.cn>,
        David Yang <davidcomponentone@...il.com>,
        Richard Cochran <richardcochran@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 10/98] ptp: replace snprintf with sysfs_emit

From: Yang Guang <yang.guang5@....com.cn>

[ Upstream commit e2cf07654efb0fd7bbcb475c6f74be7b5755a8fd ]

coccinelle report:
./drivers/ptp/ptp_sysfs.c:17:8-16:
WARNING: use scnprintf or sprintf
./drivers/ptp/ptp_sysfs.c:390:8-16:
WARNING: use scnprintf or sprintf

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Yang Guang <yang.guang5@....com.cn>
Signed-off-by: David Yang <davidcomponentone@...il.com>
Acked-by: Richard Cochran <richardcochran@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/ptp/ptp_sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ptp/ptp_sysfs.c b/drivers/ptp/ptp_sysfs.c
index 41b92dc2f011..9233bfedeb17 100644
--- a/drivers/ptp/ptp_sysfs.c
+++ b/drivers/ptp/ptp_sysfs.c
@@ -14,7 +14,7 @@ static ssize_t clock_name_show(struct device *dev,
 			       struct device_attribute *attr, char *page)
 {
 	struct ptp_clock *ptp = dev_get_drvdata(dev);
-	return snprintf(page, PAGE_SIZE-1, "%s\n", ptp->info->name);
+	return sysfs_emit(page, "%s\n", ptp->info->name);
 }
 static DEVICE_ATTR_RO(clock_name);
 
@@ -387,7 +387,7 @@ static ssize_t ptp_pin_show(struct device *dev, struct device_attribute *attr,
 
 	mutex_unlock(&ptp->pincfg_mux);
 
-	return snprintf(page, PAGE_SIZE, "%u %u\n", func, chan);
+	return sysfs_emit(page, "%u %u\n", func, chan);
 }
 
 static ssize_t ptp_pin_store(struct device *dev, struct device_attribute *attr,
-- 
2.34.1