linux-kernel - [PATCH]x86_64: early_print kernel console should send CRLF not LFCR

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Date:	Wed, 16 May 2007 19:19:20 -0700
From:	Yinghai Lu <Yinghai.Lu@....COM>
To:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
	rmk@....linux.org.uk
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Yinghai.Lu@....COM
Subject: [PATCH]x86_64: early_print kernel console should send CRLF not LFCR

[PATCH]x86_64: early_print kernel console should send CRLF not LFCR

   in 
	commit d358788f3f30113e49882187d794832905e42592
	Author: Russell King <rmk@...-67.arm.linux.org.uk>
	Date:   Mon Mar 20 20:00:09 2006 +0000

    Glen Turner reported that writing LFCR rather than the more
    traditional CRLF causes issues with some terminals.

    Since this aflicts many serial drivers, extract the common code
    to a library function (uart_console_write) and arrange for each
    driver to supply a "putchar" function.

    but early_printk is left out. 

    Signed-off-by: Yinghai Lu <yinghai.lu@....com>
    Cc: Andi Kleen <ak@...e.de>
    Cc: Russell King <rmk@....linux.org.uk>

diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c
index 56eaa25..296d2b0 100644
--- a/arch/x86_64/kernel/early_printk.c
+++ b/arch/x86_64/kernel/early_printk.c
@@ -91,9 +91,9 @@ static int early_serial_putc(unsigned char ch)
 static void early_serial_write(struct console *con, const char *s, unsigned n)
 {
 	while (*s && n-- > 0) {
-		early_serial_putc(*s);
 		if (*s == '\n')
 			early_serial_putc('\r');
+		early_serial_putc(*s);
 		s++;
 	}
 }
-
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