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authorWim Van Sebroeck <wim@iguana.be>2007-12-26 20:32:51 +0000
committerWim Van Sebroeck <wim@iguana.be>2008-01-25 20:31:50 +0000
commitc6cb13aead3a3cf5bd3e2cfa945602d5cd7825cd (patch)
treeecff4a444e33d0ca24925e92fee4f9021ba981b8 /drivers/watchdog/scx200_wdt.c
parent01c785dcb4e9fd6c4c370fd9915fc10585ed64bd (diff)
downloadlinux-c6cb13aead3a3cf5bd3e2cfa945602d5cd7825cd.tar.gz
[WATCHDOG] misc_register patch
Make sure that we first do a register_reboot_notifier before we
do a misc_register. A misc_register opens the interface to
userspace and it's best to do this as the last action.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

Diffstat (limited to 'drivers/watchdog/scx200_wdt.c')
-rw-r--r--drivers/watchdog/scx200_wdt.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c
index d4fd0fa2f176..d55882bca319 100644
--- a/drivers/watchdog/scx200_wdt.c
+++ b/drivers/watchdog/scx200_wdt.c
@@ -231,17 +231,17 @@ static int __init scx200_wdt_init(void)
 
 	sema_init(&open_semaphore, 1);
 
-	r = misc_register(&scx200_wdt_miscdev);
+	r = register_reboot_notifier(&scx200_wdt_notifier);
 	if (r) {
+		printk(KERN_ERR NAME ": unable to register reboot notifier");
 		release_region(scx200_cb_base + SCx200_WDT_OFFSET,
 				SCx200_WDT_SIZE);
 		return r;
 	}
 
-	r = register_reboot_notifier(&scx200_wdt_notifier);
+	r = misc_register(&scx200_wdt_miscdev);
 	if (r) {
-		printk(KERN_ERR NAME ": unable to register reboot notifier");
-		misc_deregister(&scx200_wdt_miscdev);
+		unregister_reboot_notifier(&scx200_wdt_notifier);
 		release_region(scx200_cb_base + SCx200_WDT_OFFSET,
 				SCx200_WDT_SIZE);
 		return r;
@@ -252,8 +252,8 @@ static int __init scx200_wdt_init(void)
 
 static void __exit scx200_wdt_cleanup(void)
 {
-	unregister_reboot_notifier(&scx200_wdt_notifier);
 	misc_deregister(&scx200_wdt_miscdev);
+	unregister_reboot_notifier(&scx200_wdt_notifier);
 	release_region(scx200_cb_base + SCx200_WDT_OFFSET,
 		       SCx200_WDT_SIZE);
 }