parisc: cleanup console handling
* 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@suse.cz>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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 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 @@
* 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);