Merge branch 'fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq...

Pull devfreq fixes for v4.7 from  MyungJoo Ham.

* 'fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq:
  PM / devfreq: fix initialization of current frequency in last status
  PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check
  PM / devfreq: remove double put_device
  PM / devfreq: fix double call put_device
  PM / devfreq: fix duplicated kfree on devfreq pointer
  PM / devfreq: devm_kzalloc to have dev pointer more precisely

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 1d6c803..c7f47e3 100644 (file)
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -552,6 +552,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
        devfreq->profile = profile;
        strncpy(devfreq->governor_name, governor_name, DEVFREQ_NAME_LEN);
        devfreq->previous_freq = profile->initial_freq;
+       devfreq->last_status.current_frequency = profile->initial_freq;
        devfreq->data = data;
        devfreq->nb.notifier_call = devfreq_notifier_call;
 
@@ -561,23 +562,22 @@ struct devfreq *devfreq_add_device(struct device *dev,
                mutex_lock(&devfreq->lock);
        }
 
-       devfreq->trans_table =  devm_kzalloc(dev, sizeof(unsigned int) *
-                                               devfreq->profile->max_state *
-                                               devfreq->profile->max_state,
-                                               GFP_KERNEL);
-       devfreq->time_in_state = devm_kzalloc(dev, sizeof(unsigned long) *
-                                               devfreq->profile->max_state,
-                                               GFP_KERNEL);
-       devfreq->last_stat_updated = jiffies;
-
        dev_set_name(&devfreq->dev, "%s", dev_name(dev));
        err = device_register(&devfreq->dev);
        if (err) {
-               put_device(&devfreq->dev);
                mutex_unlock(&devfreq->lock);
                goto err_out;
        }
 
+       devfreq->trans_table =  devm_kzalloc(&devfreq->dev, sizeof(unsigned int) *
+                                               devfreq->profile->max_state *
+                                               devfreq->profile->max_state,
+                                               GFP_KERNEL);
+       devfreq->time_in_state = devm_kzalloc(&devfreq->dev, sizeof(unsigned long) *
+                                               devfreq->profile->max_state,
+                                               GFP_KERNEL);
+       devfreq->last_stat_updated = jiffies;
+
        srcu_init_notifier_head(&devfreq->transition_notifier_list);
 
        mutex_unlock(&devfreq->lock);
@@ -603,7 +603,6 @@ struct devfreq *devfreq_add_device(struct device *dev,
 err_init:
        list_del(&devfreq->node);
        device_unregister(&devfreq->dev);
-       kfree(devfreq);
 err_out:
        return ERR_PTR(err);
 }
@@ -621,7 +620,6 @@ int devfreq_remove_device(struct devfreq *devfreq)
                return -EINVAL;
 
        device_unregister(&devfreq->dev);
-       put_device(&devfreq->dev);
 
        return 0;
 }

diff --git a/drivers/devfreq/event/exynos-nocp.c b/drivers/devfreq/event/exynos-nocp.c
index 6b6a5f3..a584140 100644 (file)
--- a/drivers/devfreq/event/exynos-nocp.c
+++ b/drivers/devfreq/event/exynos-nocp.c
@@ -220,9 +220,6 @@ static int exynos_nocp_parse_dt(struct platform_device *pdev,
 
        /* Maps the memory mapped IO to control nocp register */
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (IS_ERR(res))
-               return PTR_ERR(res);
-
        base = devm_ioremap_resource(dev, res);
        if (IS_ERR(base))
                return PTR_ERR(base);