[PATCH] macintosh: therm_windtunnel: semaphore to mutex

From: Daniel Walker
Date: Mon May 12 2008 - 12:39:21 EST


Signed-off-by: Daniel Walker <dwalker@xxxxxxxxxx>

---
drivers/macintosh/therm_windtunnel.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

Index: linux-2.6.23/drivers/macintosh/therm_windtunnel.c
===================================================================
--- linux-2.6.23.orig/drivers/macintosh/therm_windtunnel.c
+++ linux-2.6.23/drivers/macintosh/therm_windtunnel.c
@@ -62,7 +62,7 @@ static struct {
volatile int running;
struct task_struct *poll_task;

- struct semaphore lock;
+ struct mutex lock;
struct of_device *of_dev;

struct i2c_client *thermostat;
@@ -282,23 +282,23 @@ restore_regs( void )

static int control_loop(void *dummy)
{
- down(&x.lock);
+ mutex_lock(&x.lock);
setup_hardware();
- up(&x.lock);
+ mutex_unlock(&x.lock);

for (;;) {
msleep_interruptible(8000);
if (kthread_should_stop())
break;

- down(&x.lock);
+ mutex_lock(&x.lock);
poll_temp();
- up(&x.lock);
+ mutex_unlock(&x.lock);
}

- down(&x.lock);
+ mutex_lock(&x.lock);
restore_regs();
- up(&x.lock);
+ mutex_unlock(&x.lock);

return 0;
}
@@ -485,7 +485,7 @@ g4fan_init( void )
const struct apple_thermal_info *info;
struct device_node *np;

- init_MUTEX( &x.lock );
+ mutex_init(&x.lock);

if( !(np=of_find_node_by_name(NULL, "power-mgt")) )
return -ENODEV;
--

--
--
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