static void ipmi_unregister_watchdog(int ipmi_intf)
{
int rv;
if (!watchdog_user)
goto out;
if (watchdog_ifnum != ipmi_intf)
goto out;
/* Make sure no one can call us any more. */
misc_deregister(&ipmi_wdog_miscdev);
/*
* Wait to make sure the message makes it out. The lower layer has
* pointers to our buffers, we want to make sure they are done before
* we release our memory.
*/
while (atomic_read(&set_timeout_tofree))
schedule_timeout_uninterruptible(1);
/* Disconnect from IPMI. */
rv = ipmi_destroy_user(watchdog_user);
if (rv) {
printk(KERN_WARNING PFX "error unlinking from IPMI: %d\n",
rv);
}
watchdog_user = NULL;
out:
return;
}
static void ipmi_unregister_watchdog(int ipmi_intf)
{
int rv;
if (!watchdog_user)
goto out;
if (watchdog_ifnum != ipmi_intf)
goto out;
misc_deregister(&ipmi_wdog_miscdev);
while (atomic_read(&set_timeout_tofree))
schedule_timeout_uninterruptible(1);
rv = ipmi_destroy_user(watchdog_user);
if (rv) {
printk(KERN_WARNING PFX "error unlinking from IPMI: %d\n",
rv);
}
watchdog_user = NULL;
out:
return;
}
static int ipmi_release(struct inode *inode, struct file *file)
{
struct ipmi_file_private *priv = file->private_data;
int rv;
rv = ipmi_destroy_user(priv->user);
if (rv)
return rv;
/* FIXME - free the messages in the list. */
kfree(priv);
return 0;
}
static int ipmi_release(struct inode *inode, struct file *file)
{
struct ipmi_file_private *priv = file->private_data;
int rv;
rv = ipmi_destroy_user(priv->user);
if (rv)
return rv;
kfree(priv);
return 0;
}
static int ipmi_release(struct inode *inode, struct file *file)
{
struct ipmi_file_private *priv = file->private_data;
int rv;
struct ipmi_recv_msg *msg, *next;
rv = ipmi_destroy_user(priv->user);
if (rv)
return rv;
list_for_each_entry_safe(msg, next, &priv->recv_msgs, link)
ipmi_free_recv_msg(msg);
kfree(priv);
return 0;
}
static void ipmi_register_watchdog(int ipmi_intf)
{
int rv = -EBUSY;
down_write(®ister_sem);
if (watchdog_user)
goto out;
if ((ifnum_to_use >= 0) && (ifnum_to_use != ipmi_intf))
goto out;
watchdog_ifnum = ipmi_intf;
rv = ipmi_create_user(ipmi_intf, &ipmi_hndlrs, NULL, &watchdog_user);
if (rv < 0) {
printk(KERN_CRIT PFX "Unable to register with ipmi\n");
goto out;
}
ipmi_get_version(watchdog_user,
&ipmi_version_major,
&ipmi_version_minor);
rv = misc_register(&ipmi_wdog_miscdev);
if (rv < 0) {
ipmi_destroy_user(watchdog_user);
watchdog_user = NULL;
printk(KERN_CRIT PFX "Unable to register misc device\n");
}
out:
up_write(®ister_sem);
if ((start_now) && (rv == 0)) {
/* Run from startup, so start the timer now. */
start_now = 0; /* Disable this function after first startup. */
ipmi_watchdog_state = action_val;
ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
printk(KERN_INFO PFX "Starting now!\n");
}
}
static void ipmi_register_watchdog(int ipmi_intf)
{
int rv = -EBUSY;
if (watchdog_user)
goto out;
if ((ifnum_to_use >= 0) && (ifnum_to_use != ipmi_intf))
goto out;
watchdog_ifnum = ipmi_intf;
rv = ipmi_create_user(ipmi_intf, &ipmi_hndlrs, NULL, &watchdog_user);
if (rv < 0) {
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_CRIT PFX "Unable to register with ipmi\n");
#else
;
#endif
goto out;
}
ipmi_get_version(watchdog_user,
&ipmi_version_major,
&ipmi_version_minor);
rv = misc_register(&ipmi_wdog_miscdev);
if (rv < 0) {
ipmi_destroy_user(watchdog_user);
watchdog_user = NULL;
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_CRIT PFX "Unable to register misc device\n");
#else
;
#endif
}
#ifdef HAVE_DIE_NMI
if (nmi_handler_registered) {
int old_pretimeout = pretimeout;
int old_timeout = timeout;
int old_preop_val = preop_val;
/*
* Set the pretimeout to go off in a second and give
* ourselves plenty of time to stop the timer.
*/
ipmi_watchdog_state = WDOG_TIMEOUT_RESET;
preop_val = WDOG_PREOP_NONE; /* Make sure nothing happens */
pretimeout = 99;
timeout = 100;
testing_nmi = 1;
rv = ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
if (rv) {
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_WARNING PFX "Error starting timer to"
" test NMI: 0x%x. The NMI pretimeout will"
" likely not work\n", rv);
#else
;
#endif
rv = 0;
goto out_restore;
}
msleep(1500);
if (testing_nmi != 2) {
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_WARNING PFX "IPMI NMI didn't seem to"
" occur. The NMI pretimeout will"
" likely not work\n");
#else
;
#endif
}
out_restore:
testing_nmi = 0;
preop_val = old_preop_val;
pretimeout = old_pretimeout;
timeout = old_timeout;
}
#endif
out:
if ((start_now) && (rv == 0)) {
/* Run from startup, so start the timer now. */
start_now = 0; /* Disable this function after first startup. */
ipmi_watchdog_state = action_val;
ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO PFX "Starting now!\n");
#else
;
#endif
} else {
/* Stop the timer now. */
ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
}
}
static void ipmi_register_watchdog(int ipmi_intf)
{
int rv = -EBUSY;
if (watchdog_user)
goto out;
if ((ifnum_to_use >= 0) && (ifnum_to_use != ipmi_intf))
goto out;
watchdog_ifnum = ipmi_intf;
rv = ipmi_create_user(ipmi_intf, &ipmi_hndlrs, NULL, &watchdog_user);
if (rv < 0) {
printk(KERN_CRIT PFX "Unable to register with ipmi\n");
goto out;
}
ipmi_get_version(watchdog_user,
&ipmi_version_major,
&ipmi_version_minor);
rv = misc_register(&ipmi_wdog_miscdev);
if (rv < 0) {
ipmi_destroy_user(watchdog_user);
watchdog_user = NULL;
printk(KERN_CRIT PFX "Unable to register misc device\n");
}
#ifdef HAVE_DIE_NMI
if (nmi_handler_registered) {
int old_pretimeout = pretimeout;
int old_timeout = timeout;
int old_preop_val = preop_val;
ipmi_watchdog_state = WDOG_TIMEOUT_RESET;
preop_val = WDOG_PREOP_NONE;
pretimeout = 99;
timeout = 100;
testing_nmi = 1;
rv = ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
if (rv) {
printk(KERN_WARNING PFX "Error starting timer to"
" test NMI: 0x%x. The NMI pretimeout will"
" likely not work\n", rv);
rv = 0;
goto out_restore;
}
msleep(1500);
if (testing_nmi != 2) {
printk(KERN_WARNING PFX "IPMI NMI didn't seem to"
" occur. The NMI pretimeout will"
" likely not work\n");
}
out_restore:
testing_nmi = 0;
preop_val = old_preop_val;
pretimeout = old_pretimeout;
timeout = old_timeout;
}
#endif
out:
if ((start_now) && (rv == 0)) {
start_now = 0;
ipmi_watchdog_state = action_val;
ipmi_set_timeout(IPMI_SET_TIMEOUT_FORCE_HB);
printk(KERN_INFO PFX "Starting now!\n");
} else {
ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
}
}