Freezer: make kernel threads nonfreezable by default

[deliverable/linux.git] / drivers / macintosh / windfarm_core.c

diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 94c117ef20c1d74b59e4c445ef3e006f01399c51..e18d265d5d33206f437c00e6bf56a8afaf1a4cea 100644 (file)
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -27,7 +27,6 @@
 #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>
@@ -93,6 +92,7 @@ static int wf_thread_func(void *data)
 
        DBG("wf: thread started\n");
 
+       set_freezable();
        while(!kthread_should_stop()) {
                if (time_after_eq(jiffies, next)) {
                        wf_notify(WF_EVENT_TICK, NULL);
@@ -213,11 +213,13 @@ int wf_register_control(struct wf_control *new_ct)
        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);
 
@@ -323,11 +325,13 @@ int wf_register_sensor(struct wf_sensor *new_sr)
        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);