diff options
| author | Akinobu Mita <akinobu.mita@gmail.com> | 2010-08-21 18:27:50 +0900 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2010-09-15 18:43:47 +0000 |
| commit | ae44855ae8b36e4194a0a43eec6351e81f880955 (patch) | |
| tree | 2d47175a0562b8ea838ed98186a6b8e3fb5e14d1 /drivers/watchdog/sb_wdog.c | |
| parent | 9c03f1622af051004416dd3e24d8a0fa31e34178 (diff) | |
watchdog: sb_wdog: release irq and reboot notifier in error path and module_exit()
irq and reboot notifier are acquired in module_init() but never released.
They should be released correctly, otherwise reloading the module or error
during module_init() will cause a problem.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andrew Sharp <andy.sharp@lsi.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/sb_wdog.c')
| -rw-r--r-- | drivers/watchdog/sb_wdog.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c index 88c83aa57303..f31493e65b38 100644 --- a/drivers/watchdog/sb_wdog.c +++ b/drivers/watchdog/sb_wdog.c @@ -305,7 +305,7 @@ static int __init sbwdog_init(void) if (ret) { printk(KERN_ERR "%s: failed to request irq 1 - %d\n", ident.identity, ret); - return ret; + goto out; } ret = misc_register(&sbwdog_miscdev); @@ -313,14 +313,20 @@ static int __init sbwdog_init(void) printk(KERN_INFO "%s: timeout is %ld.%ld secs\n", ident.identity, timeout / 1000000, (timeout / 100000) % 10); - } else - free_irq(1, (void *)user_dog); + return 0; + } + free_irq(1, (void *)user_dog); +out: + unregister_reboot_notifier(&sbwdog_notifier); + return ret; } static void __exit sbwdog_exit(void) { misc_deregister(&sbwdog_miscdev); + free_irq(1, (void *)user_dog); + unregister_reboot_notifier(&sbwdog_notifier); } module_init(sbwdog_init); |