[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>
diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c
index b481cc0e..2b1fbdb 100644
--- a/drivers/watchdog/alim1535_wdt.c
+++ b/drivers/watchdog/alim1535_wdt.c
@@ -413,18 +413,18 @@
/* Calculate the watchdog's timeout */
ali_settimer(timeout);
- ret = misc_register(&ali_miscdev);
- if (ret != 0) {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
- goto out;
- }
-
ret = register_reboot_notifier(&ali_notifier);
if (ret != 0) {
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
ret);
- goto unreg_miscdev;
+ goto out;
+ }
+
+ ret = misc_register(&ali_miscdev);
+ if (ret != 0) {
+ printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+ WATCHDOG_MINOR, ret);
+ goto unreg_reboot;
}
printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
@@ -432,8 +432,8 @@
out:
return ret;
-unreg_miscdev:
- misc_deregister(&ali_miscdev);
+unreg_reboot:
+ unregister_reboot_notifier(&ali_notifier);
goto out;
}
@@ -449,8 +449,8 @@
ali_stop();
/* Deregister */
- unregister_reboot_notifier(&ali_notifier);
misc_deregister(&ali_miscdev);
+ unregister_reboot_notifier(&ali_notifier);
pci_dev_put(ali_pci);
}
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
index 67aed9f..238273c 100644
--- a/drivers/watchdog/alim7101_wdt.c
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -377,18 +377,18 @@
timeout);
}
- rc = misc_register(&wdt_miscdev);
- if (rc) {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
- goto err_out;
- }
-
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
rc);
- goto err_out_miscdev;
+ goto err_out;
+ }
+
+ rc = misc_register(&wdt_miscdev);
+ if (rc) {
+ printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
+ goto err_out_reboot;
}
if (nowayout) {
@@ -399,8 +399,8 @@
timeout, nowayout);
return 0;
-err_out_miscdev:
- misc_deregister(&wdt_miscdev);
+err_out_reboot:
+ unregister_reboot_notifier(&wdt_notifier);
err_out:
pci_dev_put(alim7101_pmu);
return rc;
diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c
index e4f3cb6..ef76f01 100644
--- a/drivers/watchdog/sbc60xxwdt.c
+++ b/drivers/watchdog/sbc60xxwdt.c
@@ -359,20 +359,20 @@
}
}
- rc = misc_register(&wdt_miscdev);
- if (rc)
- {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
- goto err_out_region2;
- }
-
rc = register_reboot_notifier(&wdt_notifier);
if (rc)
{
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
rc);
- goto err_out_miscdev;
+ goto err_out_region2;
+ }
+
+ rc = misc_register(&wdt_miscdev);
+ if (rc)
+ {
+ printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
+ goto err_out_reboot;
}
printk(KERN_INFO PFX "WDT driver for 60XX single board computer initialised. timeout=%d sec (nowayout=%d)\n",
@@ -380,8 +380,8 @@
return 0;
-err_out_miscdev:
- misc_deregister(&wdt_miscdev);
+err_out_reboot:
+ unregister_reboot_notifier(&wdt_notifier);
err_out_region2:
if ((wdt_stop != 0x45) && (wdt_stop != wdt_start))
release_region(wdt_stop,1);
diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c
index d4fd0fa..d55882b 100644
--- a/drivers/watchdog/scx200_wdt.c
+++ b/drivers/watchdog/scx200_wdt.c
@@ -231,17 +231,17 @@
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 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);
}
diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c
index bcc9d48..f510a3a 100644
--- a/drivers/watchdog/w83877f_wdt.c
+++ b/drivers/watchdog/w83877f_wdt.c
@@ -373,20 +373,20 @@
goto err_out_region1;
}
- rc = misc_register(&wdt_miscdev);
- if (rc)
- {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
- goto err_out_region2;
- }
-
rc = register_reboot_notifier(&wdt_notifier);
if (rc)
{
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
rc);
- goto err_out_miscdev;
+ goto err_out_region2;
+ }
+
+ rc = misc_register(&wdt_miscdev);
+ if (rc)
+ {
+ printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
+ goto err_out_reboot;
}
printk(KERN_INFO PFX "WDT driver for W83877F initialised. timeout=%d sec (nowayout=%d)\n",
@@ -394,8 +394,8 @@
return 0;
-err_out_miscdev:
- misc_deregister(&wdt_miscdev);
+err_out_reboot:
+ unregister_reboot_notifier(&wdt_notifier);
err_out_region2:
release_region(WDT_PING,1);
err_out_region1:
diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c
index b475529..b209bcd 100644
--- a/drivers/watchdog/w83977f_wdt.c
+++ b/drivers/watchdog/w83977f_wdt.c
@@ -494,20 +494,20 @@
goto err_out;
}
- rc = misc_register(&wdt_miscdev);
- if (rc)
- {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- wdt_miscdev.minor, rc);
- goto err_out_region;
- }
-
rc = register_reboot_notifier(&wdt_notifier);
if (rc)
{
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
rc);
- goto err_out_miscdev;
+ goto err_out_region;
+ }
+
+ rc = misc_register(&wdt_miscdev);
+ if (rc)
+ {
+ printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+ wdt_miscdev.minor, rc);
+ goto err_out_reboot;
}
printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d testmode=%d)\n",
@@ -515,8 +515,8 @@
return 0;
-err_out_miscdev:
- misc_deregister(&wdt_miscdev);
+err_out_reboot:
+ unregister_reboot_notifier(&wdt_notifier);
err_out_region:
release_region(IO_INDEX_PORT,2);
err_out:
diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c
index 9b7f6b6..fb4b876 100644
--- a/drivers/watchdog/wdt977.c
+++ b/drivers/watchdog/wdt977.c
@@ -470,20 +470,20 @@
}
}
- rc = misc_register(&wdt977_miscdev);
- if (rc)
- {
- printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- wdt977_miscdev.minor, rc);
- goto err_out_region;
- }
-
rc = register_reboot_notifier(&wdt977_notifier);
if (rc)
{
printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
rc);
- goto err_out_miscdev;
+ goto err_out_region;
+ }
+
+ rc = misc_register(&wdt977_miscdev);
+ if (rc)
+ {
+ printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
+ wdt977_miscdev.minor, rc);
+ goto err_out_reboot;
}
printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d, testmode=%i)\n",
@@ -491,8 +491,8 @@
return 0;
-err_out_miscdev:
- misc_deregister(&wdt977_miscdev);
+err_out_reboot:
+ unregister_reboot_notifier(&wdt977_notifier);
err_out_region:
if (!machine_is_netwinder())
release_region(IO_INDEX_PORT,2);