[PATCH V2 Resend] cpuidle: free all state kobjects from cpuidle_free_state_kobj()

From: Viresh Kumar
Date: Wed Nov 20 2013 - 22:24:26 EST


Loop for states is currently present on callers side and so is replicated at
several places. It would be better to move that inside cpuidle_free_state_kobj()
instead.

This patch does it.

Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/cpuidle/sysfs.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index e918b6d..ade31a9 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -378,12 +378,17 @@ static struct kobj_type ktype_state_cpuidle = {
.release = cpuidle_state_sysfs_release,
};

-static inline void cpuidle_free_state_kobj(struct cpuidle_device *device, int i)
+static inline void cpuidle_free_state_kobj(struct cpuidle_device *device,
+ int count)
{
- kobject_put(&device->kobjs[i]->kobj);
- wait_for_completion(&device->kobjs[i]->kobj_unregister);
- kfree(device->kobjs[i]);
- device->kobjs[i] = NULL;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ kobject_put(&device->kobjs[i]->kobj);
+ wait_for_completion(&device->kobjs[i]->kobj_unregister);
+ kfree(device->kobjs[i]);
+ device->kobjs[i] = NULL;
+ }
}

/**
@@ -419,8 +424,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device)
return 0;

error_state:
- for (i = i - 1; i >= 0; i--)
- cpuidle_free_state_kobj(device, i);
+ cpuidle_free_state_kobj(device, i);
return ret;
}

@@ -430,10 +434,7 @@ error_state:
*/
static void cpuidle_remove_state_sysfs(struct cpuidle_device *device)
{
- int i;
-
- for (i = 0; i < device->state_count; i++)
- cpuidle_free_state_kobj(device, i);
+ cpuidle_free_state_kobj(device, device->state_count);
}

#ifdef CONFIG_CPU_IDLE_MULTIPLE_DRIVERS
--
1.7.12.rc2.18.g61b472e

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