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[POWERPC] Convert therm_pm72.c to use the kthread API 

This converts the therm_pm72.c driver to use the kthread API.  I
thought about making it use kthread_stop() instead of the `state'
variable and the `ctrl_complete' completion, but that isn't simple and
will require changing the way that `state' is used.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras 2007-12-13 15:54:45 +11:00
parent c61dace9a1
commit 39d183d877
1 changed files with 4 additions and 5 deletions
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9
drivers/macintosh/therm_pm72.c
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@ -121,6 +121,7 @@
#include <linux/reboot.h>
#include <linux/kmod.h>
#include <linux/i2c.h>
#include <linux/kthread.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/io.h>
@ -161,7 +162,7 @@ static struct slots_pid_state slots_state;
static int state;
static int cpu_count;
static int cpu_pid_type;
static pid_t ctrl_task;
static struct task_struct *ctrl_task;
static struct completion ctrl_complete;
static int critical_state;
static int rackmac;
@ -1779,8 +1780,6 @@ static int call_critical_overtemp(void)
*/
static int main_control_loop(void *x)
{
daemonize("kfand");
DBG("main_control_loop started\n");
down(&driver_lock);
@ -1956,7 +1955,7 @@ static void start_control_loops(void)
{
init_completion(&ctrl_complete);
ctrl_task = kernel_thread(main_control_loop, NULL, SIGCHLD | CLONE_KERNEL);
ctrl_task = kthread_run(main_control_loop, NULL, "kfand");
}
/*
@ -1964,7 +1963,7 @@ static void start_control_loops(void)
*/
static void stop_control_loops(void)
{
if (ctrl_task != 0)
if (ctrl_task)
wait_for_completion(&ctrl_complete);
}