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serial: 8250: replace snprintf in show functions with sysfs_emit

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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>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jing Yao <yao.jing2@zte.com.cn>
Link: https://lore.kernel.org/r/20211104114754.30983-1-yao.jing2@zte.com.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jing Yao 2021-11-04 11:47:54 +00:00 committed by Greg Kroah-Hartman
parent 1360572566
commit 7ee7482e60
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/8250/8250_port.c
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@ -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)