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| author | Sivaram Nair <sivaramn@nvidia.com> | 2012-12-18 13:52:50 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-01-03 13:11:05 +0100 |
| commit | 0e5537b30d3029d784226ab51c2b923d1155b553 (patch) | |
| tree | 011a828504a97450442738363560804024f54a02 /drivers/cpuidle | |
| parent | d1c3ed669a2d452cacfb48c2d171a1f364dae2ed (diff) | |
| download | linux-0e5537b30d3029d784226ab51c2b923d1155b553.tar.gz linux-0e5537b30d3029d784226ab51c2b923d1155b553.tar.bz2 linux-0e5537b30d3029d784226ab51c2b923d1155b553.zip | |
cpuidle: Fix finding state with min power_usage
Since cpuidle_state.power_usage is a signed value, use INT_MAX (instead
of -1) to init the local copies so that functions that tries to find
cpuidle states with minimum power usage works correctly even if they use
non-negative values.
Signed-off-by: Sivaram Nair <sivaramn@nvidia.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 2 | ||||
| -rw-r--r-- | drivers/cpuidle/governors/menu.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 8df53dd8dbe1..fb4a7dd57f94 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -70,7 +70,7 @@ int cpuidle_play_dead(void) struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices); struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev); int i, dead_state = -1; - int power_usage = -1; + int power_usage = INT_MAX; if (!drv) return -ENODEV; diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index bd40b943b6db..20ea33afdda1 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -312,7 +312,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev) { struct menu_device *data = &__get_cpu_var(menu_devices); int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY); - int power_usage = -1; + int power_usage = INT_MAX; int i; int multiplier; struct timespec t; |