diff options
| author | Daniel Walker <dwalker@mvista.com> | 2008-05-03 06:34:02 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-05-05 16:47:13 +1000 |
| commit | 56783c5e4dd32ca370ad0bdf3a9c6c1aaee94726 (patch) | |
| tree | 92baafb36f05158534edca374ddfb8bf7b33a0c2 /drivers/macintosh/windfarm_smu_sat.c | |
| parent | 0885cb5653ff82c8d322df1b8a95843dc5f5486b (diff) | |
| download | linux-56783c5e4dd32ca370ad0bdf3a9c6c1aaee94726.tar.bz2 | |
[POWERPC] macintosh: windfarm_smu_sat: semaphore to mutex
Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/macintosh/windfarm_smu_sat.c')
| -rw-r--r-- | drivers/macintosh/windfarm_smu_sat.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c index 797918d0e59c..7f2be4baaeda 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 <linux/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; |