#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
#include <linux/kthread.h>
#include <linux/jiffies.h>
#include <linux/reboot.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
+#include <linux/freezer.h>
#include <asm/prom.h>
"PATH=/sbin:/usr/sbin:/bin:/usr/bin",
NULL };
- return call_usermodehelper(critical_overtemp_path, argv, envp, 0);
+ return call_usermodehelper(critical_overtemp_path,
+ argv, envp, UMH_WAIT_EXEC);
}
EXPORT_SYMBOL_GPL(wf_critical_overtemp);
DBG("wf: thread started\n");
- while(!kthread_should_stop()) {
+ set_freezable();
+ while (!kthread_should_stop()) {
try_to_freeze();
if (time_after_eq(jiffies, next)) {
delay = next - jiffies;
if (delay <= HZ)
schedule_timeout_interruptible(delay);
-
- /* there should be no signal, but oh well */
- if (signal_pending(current)) {
- printk(KERN_WARNING "windfarm: thread got sigl !\n");
- break;
- }
}
DBG("wf: thread stopped\n");
list_add(&new_ct->link, &wf_controls);
new_ct->attr.attr.name = new_ct->name;
- new_ct->attr.attr.owner = THIS_MODULE;
new_ct->attr.attr.mode = 0644;
new_ct->attr.show = wf_show_control;
new_ct->attr.store = wf_store_control;
- device_create_file(&wf_platform_device.dev, &new_ct->attr);
+ if (device_create_file(&wf_platform_device.dev, &new_ct->attr))
+ printk(KERN_WARNING "windfarm: device_create_file failed"
+ " for %s\n", new_ct->name);
+ /* the subsystem still does useful work without the file */
DBG("wf: Registered control %s\n", new_ct->name);
list_add(&new_sr->link, &wf_sensors);
new_sr->attr.attr.name = new_sr->name;
- new_sr->attr.attr.owner = THIS_MODULE;
new_sr->attr.attr.mode = 0444;
new_sr->attr.show = wf_show_sensor;
new_sr->attr.store = NULL;
- device_create_file(&wf_platform_device.dev, &new_sr->attr);
+ if (device_create_file(&wf_platform_device.dev, &new_sr->attr))
+ printk(KERN_WARNING "windfarm: device_create_file failed"
+ " for %s\n", new_sr->name);
+ /* the subsystem still does useful work without the file */
DBG("wf: Registered sensor %s\n", new_sr->name);