[PATCH 45/46] drivers/base/attribute_container.c: use mutex instead of binary semaphore

Greg Kroah-Hartman
2007-04-27T19:02:59Z

From: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>

use mutex instead of binary semaphore in
drivers/base/attribute_container.c

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>
---
drivers/base/attribute_container.c | 26 +++++++++++++-------------
1 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c
index 2222073..1ec0654 100644
--- a/drivers/base/attribute_container.c
+++ b/drivers/base/attribute_container.c
@@ -62,7 +62,7 @@ EXPORT_SYMBOL_GPL(attribute_container_classdev_to_container);

static struct list_head attribute_container_list;

-static DECLARE_MUTEX(attribute_container_mutex);
+static DEFINE_MUTEX(attribute_container_mutex);

/**
* attribute_container_register - register an attribute container
@@ -77,9 +77,9 @@ attribute_container_register(struct attribute_container *cont)
klist_init(&cont->containers,internal_container_klist_get,
internal_container_klist_put);

- down(&attribute_container_mutex);
+ mutex_lock(&attribute_container_mutex);
list_add_tail(&cont->node, &attribute_container_list);
- up(&attribute_container_mutex);
+ mutex_unlock(&attribute_container_mutex);

return 0;
}
@@ -94,7 +94,7 @@ int
attribute_container_unregister(struct attribute_container *cont)
{
int retval = -EBUSY;
- down(&attribute_container_mutex);
+ mutex_lock(&attribute_container_mutex);
spin_lock(&cont->containers.k_lock);
if (!list_empty(&cont->containers.k_list))
goto out;
@@ -102,7 +102,7 @@ attribute_container_unregister(struct attribute_container *cont)
list_del(&cont->node);
out:
spin_unlock(&cont->containers.k_lock);
- up(&attribute_container_mutex);
+ mutex_unlock(&attribute_container_mutex);
return retval;

}
@@ -145,7 +145,7 @@ attribute_container_add_device(struct device *dev,
{
struct attribute_container *cont;

- down(&attribute_container_mutex);
+ mutex_lock(&attribute_container_mutex);
list_for_each_entry(cont, &attribute_container_list, node) {
struct internal_container *ic;

@@ -173,7 +173,7 @@ attribute_container_add_device(struct device *dev,
attribute_container_add_class_device(&ic->classdev);
klist_add_tail(&ic->node, &cont->containers);
}
- up(&attribute_container_mutex);
+ mutex_unlock(&attribute_container_mutex);
}

/* FIXME: can't break out of this unless klist_iter_exit is also
@@ -211,7 +211,7 @@ attribute_container_remove_device(struct device *dev,
{
struct attribute_container *cont;

- down(&attribute_container_mutex);
+ mutex_lock(&attribute_container_mutex);
list_for_each_entry(cont, &attribute_container_list, node) {
struct internal_container *ic;
struct klist_iter iter;
@@ -234,7 +234,7 @@ attribute_container_remove_device(struct device *dev,
}
}
}
- up(&attribute_container_mutex);
+ mutex_unlock(&attribute_container_mutex);
}

/**
@@ -255,7 +255,7 @@ attribute_container_device_trigger(struct device *dev,
{
struct attribute_container *cont;

- down(&attribute_container_mutex);
+ mutex_lock(&attribute_container_mutex);
list_for_each_entry(cont, &attribute_container_list, node) {
struct internal_container *ic;
struct klist_iter iter;
@@ -273,7 +273,7 @@ attribute_container_device_trigger(struct device *dev,
fn(cont, dev, &ic->classdev);
}
}
- up(&attribute_container_mutex);
+ mutex_unlock(&attribute_container_mutex);
}

/**
@@ -295,12 +295,12 @@ attribute_container_trigger(struct device *dev,
{
struct attribute_container *cont;

- down(&attribute_container_mutex);
+ mutex_lock(&attribute_container_mutex);
list_for_each_entry(cont, &attribute_container_list, node) {
if (cont->match(cont, dev))
fn(cont, dev);
}
- up(&attribute_container_mutex);
+ mutex_unlock(&attribute_container_mutex);
}

/**
--
1.5.1.2