From: Pascal Terjan <pterjan@mandriva.com>
Date: Fri, 3 Oct 2008 01:45:55 +0000 (+0000)
Subject: braille_console: only register notifiers when the braille console is used
X-Git-Tag: v2.6.26.6~7
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c6b06fdb17a6467fa17b18a41c8d8147f4fb64e0;p=karo-tx-linux.git

braille_console: only register notifiers when the braille console is used

commit c0c9209ddd96bc4f1d70a8b9958710671e076080 upstream

Only register the braille driver VT and keyboard notifiers when the
braille console is used.  Avoids eating insert or backspace keys.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11242

Signed-off-by: Pascal Terjan <pterjan@mandriva.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Moritz Muehlenhoff <jmm@inutil.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/accessibility/braille/braille_console.c b/drivers/accessibility/braille/braille_console.c
index 0a5f6b2114c5..d672cfe7ca59 100644
--- a/drivers/accessibility/braille/braille_console.c
+++ b/drivers/accessibility/braille/braille_console.c
@@ -376,6 +376,8 @@ int braille_register_console(struct console *console, int index,
 	console->flags |= CON_ENABLED;
 	console->index = index;
 	braille_co = console;
+	register_keyboard_notifier(&keyboard_notifier_block);
+	register_vt_notifier(&vt_notifier_block);
 	return 0;
 }
 
@@ -383,15 +385,8 @@ int braille_unregister_console(struct console *console)
 {
 	if (braille_co != console)
 		return -EINVAL;
+	unregister_keyboard_notifier(&keyboard_notifier_block);
+	unregister_vt_notifier(&vt_notifier_block);
 	braille_co = NULL;
 	return 0;
 }
-
-static int __init braille_init(void)
-{
-	register_keyboard_notifier(&keyboard_notifier_block);
-	register_vt_notifier(&vt_notifier_block);
-	return 0;
-}
-
-console_initcall(braille_init);