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From:   cgel.zte@gmail.com
To:     joe@perches.com
Cc:     andrew@aj.id.au, cgel.zte@gmail.com, fancer.lancer@gmail.com,
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        zealci@zte.com.cn
Subject: [PATCH v2] drivers: tty: replace snprintf in show functions with sysfs_emit
Date:   Tue,  2 Nov 2021 06:52:06 +0000
Message-Id: <20211102065206.3368-1-yao.jing2@zte.com.cn>
In-Reply-To: <b42482be11d04963fed0903ce1bd983742efc5c6.camel@perches.com>
References: <b42482be11d04963fed0903ce1bd983742efc5c6.camel@perches.com>
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From: Jing Yao <yao.jing2@zte.com.cn>

coccicheck complains about the use of snprintf() in sysfs show
functions:
WARNING use scnprintf or sprintf

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jing Yao <yao.jing2@zte.com.cn>
---
 drivers/tty/serial/8250/8250_port.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 5775cbff8f6e..3d58f383152e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -3099,7 +3099,7 @@ static ssize_t rx_trig_bytes_show(struct device *dev,
 	if (rxtrig_bytes < 0)
 		return rxtrig_bytes;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", rxtrig_bytes);
+	return sysfs_emit(buf, "%d\n", rxtrig_bytes);
 }
 
 static int do_set_rxtrig(struct tty_port *port, unsigned char bytes)
-- 
2.25.1