linux-kernel - [PATCH 12/36] parisc: cleanup console handling

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Message-Id: <1294352605-31906-12-git-send-email-gregkh@suse.de>
Date:	Thu,  6 Jan 2011 14:23:01 -0800
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Jiri Slaby <jslaby@...e.cz>, Helge Deller <deller@....de>,
	"James E.J. Bottomley" <jejb@...isc-linux.org>,
	linux-parisc@...r.kernel.org, Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 12/36] parisc: cleanup console handling

From: Jiri Slaby <jslaby@...e.cz>

* use newly added for_each_console for iterating consoles
* add proper console locking
* do not initialize tmp twice
* no need to declare console_drivers, it's already done in console.h

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Acked-by: Kyle McMartin <kyle@...artin.ca>
Cc: Helge Deller <deller@....de>
Cc: "James E.J. Bottomley" <jejb@...isc-linux.org>
Cc: linux-parisc@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 arch/parisc/kernel/pdc_cons.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 66d1f17..11bdd68 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -92,8 +92,6 @@ static int pdc_console_setup(struct console *co, char *options)
 
 static struct timer_list pdc_console_timer;
 
-extern struct console * console_drivers;
-
 static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
 {
 
@@ -169,11 +167,13 @@ static int __init pdc_console_tty_driver_init(void)
 	 * It is unregistered if the pdc console was not selected as the
 	 * primary console. */
 
-	struct console *tmp = console_drivers;
+	struct console *tmp;
 
-	for (tmp = console_drivers; tmp; tmp = tmp->next)
+	acquire_console_sem();
+	for_each_console(tmp)
 		if (tmp == &pdc_cons)
 			break;
+	release_console_sem();
 
 	if (!tmp) {
 		printk(KERN_INFO "PDC console driver not registered anymore, not creating %s\n", pdc_cons.name);
-- 
1.7.3.2

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