X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fmacintosh%2Fwindfarm_smu_sat.c;h=7f2be4baaedab9cec03e721a5733e864d10016bb;hb=ecc8b655b38a880b578146895e0e1e2d477ca2c0;hp=351982bcec1b21d3a46c767f2879202c73e1419b;hpb=dcb76f88683618ed6ef0df66643dba1285881ee5;p=linux-2.6

diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c
index 351982bcec..7f2be4baae 100644
--- a/drivers/macintosh/windfarm_smu_sat.c
+++ b/drivers/macintosh/windfarm_smu_sat.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/wait.h>
 #include <linux/i2c.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 #include <asm/prom.h>
 #include <asm/smu.h>
 #include <asm/pmac_low_i2c.h>
@@ -36,7 +36,7 @@
 struct wf_sat {
 	int			nr;
 	atomic_t		refcnt;
-	struct semaphore	mutex;
+	struct mutex		mutex;
 	unsigned long		last_read; /* jiffies when cache last updated */
 	u8			cache[16];
 	struct i2c_client	i2c;
@@ -163,7 +163,7 @@ static int wf_sat_get(struct wf_sensor *sr, s32 *value)
 	if (sat->i2c.adapter == NULL)
 		return -ENODEV;
 
-	down(&sat->mutex);
+	mutex_lock(&sat->mutex);
 	if (time_after(jiffies, (sat->last_read + MAX_AGE))) {
 		err = wf_sat_read_cache(sat);
 		if (err)
@@ -182,7 +182,7 @@ static int wf_sat_get(struct wf_sensor *sr, s32 *value)
 	err = 0;
 
  fail:
-	up(&sat->mutex);
+	mutex_unlock(&sat->mutex);
 	return err;
 }
 
@@ -233,7 +233,7 @@ static void wf_sat_create(struct i2c_adapter *adapter, struct device_node *dev)
 	sat->nr = -1;
 	sat->node = of_node_get(dev);
 	atomic_set(&sat->refcnt, 0);
-	init_MUTEX(&sat->mutex);
+	mutex_init(&sat->mutex);
 	sat->i2c.addr = (addr >> 1) & 0x7f;
 	sat->i2c.adapter = adapter;
 	sat->i2c.driver = &wf_sat_driver;
@@ -380,10 +380,12 @@ static int __init sat_sensors_init(void)
 	return i2c_add_driver(&wf_sat_driver);
 }
 
+#if 0	/* uncomment when module_exit() below is uncommented */
 static void __exit sat_sensors_exit(void)
 {
 	i2c_del_driver(&wf_sat_driver);
 }
+#endif
 
 module_init(sat_sensors_init);
 /*module_exit(sat_sensors_exit); Uncomment when cleanup is implemented */