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[PATCH] thermal throttle: sysfs error checking

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Get rid of warning in the thermal throttling code about not checking
sysfs return values.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stephen Hemminger 2006-10-12 11:01:30 -07:00 committed by Linus Torvalds
parent 1b95817dd7
commit 6569345abb
1 changed files with 12 additions and 9 deletions
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21
arch/i386/kernel/cpu/mcheck/therm_throt.c
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@ -110,17 +110,15 @@ int therm_throt_process(int curr)
#ifdef CONFIG_SYSFS
/* Add/Remove thermal_throttle interface for CPU device */
static __cpuinit int thermal_throttle_add_dev(struct sys_device * sys_dev)
static __cpuinit int thermal_throttle_add_dev(struct sys_device *sys_dev)
{
sysfs_create_group(&sys_dev->kobj, &thermal_throttle_attr_group);
return 0;
return sysfs_create_group(&sys_dev->kobj, &thermal_throttle_attr_group);
}
#ifdef CONFIG_HOTPLUG_CPU
static __cpuinit int thermal_throttle_remove_dev(struct sys_device * sys_dev)
static __cpuinit void thermal_throttle_remove_dev(struct sys_device *sys_dev)
{
sysfs_remove_group(&sys_dev->kobj, &thermal_throttle_attr_group);
return 0;
return sysfs_remove_group(&sys_dev->kobj, &thermal_throttle_attr_group);
}
/* Mutex protecting device creation against CPU hotplug */
@ -133,12 +131,14 @@ static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb,
{
unsigned int cpu = (unsigned long)hcpu;
struct sys_device *sys_dev;
int err;
sys_dev = get_cpu_sysdev(cpu);
mutex_lock(&therm_cpu_lock);
switch (action) {
case CPU_ONLINE:
thermal_throttle_add_dev(sys_dev);
err = thermal_throttle_add_dev(sys_dev);
WARN_ON(err);
break;
case CPU_DEAD:
thermal_throttle_remove_dev(sys_dev);
@ -157,6 +157,7 @@ static struct notifier_block thermal_throttle_cpu_notifier =
static __init int thermal_throttle_init_device(void)
{
unsigned int cpu = 0;
int err;
if (!atomic_read(&therm_throt_en))
return 0;
@ -167,8 +168,10 @@ static __init int thermal_throttle_init_device(void)
mutex_lock(&therm_cpu_lock);
#endif
/* connect live CPUs to sysfs */
for_each_online_cpu(cpu)
thermal_throttle_add_dev(get_cpu_sysdev(cpu));
for_each_online_cpu(cpu) {
err = thermal_throttle_add_dev(get_cpu_sysdev(cpu));
WARN_ON(err);
}
#ifdef CONFIG_HOTPLUG_CPU
mutex_unlock(&therm_cpu_lock);
#endif