console: rename acquire/release_console_sem() to console_lock/unlock()

The -rt patches change the console_semaphore to console_mutex.  As a
result, a quite large chunk of the patches changes all
acquire/release_console_sem() to acquire/release_console_mutex()

This commit makes things use more neutral function names which dont make
implications about the underlying lock.

The only real change is the return value of console_trylock which is
inverted from try_acquire_console_sem()

This patch also paves the way to switching console_sem from a semaphore to
a mutex.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: make console_trylock return 1 on success, per Geert]
Signed-off-by: Torben Hohn <torbenh@gmx.de>
Cc: Thomas Gleixner <tglx@tglx.de>
Cc: Greg KH <gregkh@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index dd9de2e..4cb6a57 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1860,11 +1860,11 @@
 {
         struct aty128fb_par *par = data;
 
-	if (try_acquire_console_sem())
+	if (!console_trylock())
 		return;
 	pci_restore_state(par->pdev);
 	aty128_do_resume(par->pdev);
-	release_console_sem();
+	console_unlock();
 }
 #endif /* CONFIG_PPC_PMAC */
 
@@ -2438,7 +2438,7 @@
 
 	printk(KERN_DEBUG "aty128fb: suspending...\n");
 	
-	acquire_console_sem();
+	console_lock();
 
 	fb_set_suspend(info, 1);
 
@@ -2470,7 +2470,7 @@
 	if (state.event != PM_EVENT_ON)
 		aty128_set_suspend(par, 1);
 
-	release_console_sem();
+	console_unlock();
 
 	pdev->dev.power.power_state = state;
 
@@ -2527,9 +2527,9 @@
 {
 	int rc;
 
-	acquire_console_sem();
+	console_lock();
 	rc = aty128_do_resume(pdev);
-	release_console_sem();
+	console_unlock();
 
 	return rc;
 }