diff options
| author | Matthias Kaehlcke | 2007-05-23 14:19:41 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2007-07-11 16:09:01 -0700 |
| commit | 11048dcf333c414f237bb713c422e68f67b115a3 (patch) | |
| tree | 3a42905f9b946e5614568568c4ee1f8f54f54e86 /drivers/base/power/runtime.c | |
| parent | 9f3f776bd9e3d52f0204db1df0914b50d6a2372e (diff) | |
Power Management: use mutexes instead of semaphores
The Power Management code uses semaphores as mutexes. Use the mutex API
instead of the (binary) semaphores.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/power/runtime.c')
| -rw-r--r-- | drivers/base/power/runtime.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 96370ec1d673..df6174d85866 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -32,9 +32,9 @@ static void runtime_resume(struct device * dev) void dpm_runtime_resume(struct device * dev) { - down(&dpm_sem); + mutex_lock(&dpm_mtx); runtime_resume(dev); - up(&dpm_sem); + mutex_unlock(&dpm_mtx); } EXPORT_SYMBOL(dpm_runtime_resume); @@ -49,7 +49,7 @@ int dpm_runtime_suspend(struct device * dev, pm_message_t state) { int error = 0; - down(&dpm_sem); + mutex_lock(&dpm_mtx); if (dev->power.power_state.event == state.event) goto Done; @@ -59,7 +59,7 @@ int dpm_runtime_suspend(struct device * dev, pm_message_t state) if (!(error = suspend_device(dev, state))) dev->power.power_state = state; Done: - up(&dpm_sem); + mutex_unlock(&dpm_mtx); return error; } EXPORT_SYMBOL(dpm_runtime_suspend); @@ -78,8 +78,8 @@ EXPORT_SYMBOL(dpm_runtime_suspend); */ void dpm_set_power_state(struct device * dev, pm_message_t state) { - down(&dpm_sem); + mutex_lock(&dpm_mtx); dev->power.power_state = state; - up(&dpm_sem); + mutex_unlock(&dpm_mtx); } #endif /* 0 */ |