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[SCSI] Re-do "final klist fixes"

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With the previous commit that introduces the klist enhancements, we can
now re-do 2b7d6a8cb9 again.
This commit is contained in:
Linus Torvalds 2005-09-07 18:44:33 -07:00
parent 34bb61f9dd
commit caf39e87cc
1 changed files with 20 additions and 4 deletions
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24
drivers/base/attribute_container.c
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@ -27,6 +27,21 @@ struct internal_container {
struct class_device classdev;
};
static void internal_container_klist_get(struct klist_node *n)
{
struct internal_container *ic =
container_of(n, struct internal_container, node);
class_device_get(&ic->classdev);
}
static void internal_container_klist_put(struct klist_node *n)
{
struct internal_container *ic =
container_of(n, struct internal_container, node);
class_device_put(&ic->classdev);
}
/**
* attribute_container_classdev_to_container - given a classdev, return the container
*
@ -57,7 +72,8 @@ int
attribute_container_register(struct attribute_container *cont)
{
INIT_LIST_HEAD(&cont->node);
klist_init(&cont->containers);
klist_init(&cont->containers,internal_container_klist_get,
internal_container_klist_put);
down(&attribute_container_mutex);
list_add_tail(&cont->node, &attribute_container_list);
@ -163,8 +179,8 @@ attribute_container_add_device(struct device *dev,
#define klist_for_each_entry(pos, head, member, iter) \
for (klist_iter_init(head, iter); (pos = ({ \
struct klist_node *n = klist_next(iter); \
n ? ({ klist_iter_exit(iter) ; NULL; }) : \
container_of(n, typeof(*pos), member);\
n ? container_of(n, typeof(*pos), member) : \
({ klist_iter_exit(iter) ; NULL; }); \
}) ) != NULL; )
@ -206,7 +222,7 @@ attribute_container_remove_device(struct device *dev,
klist_for_each_entry(ic, &cont->containers, node, &iter) {
if (dev != ic->classdev.dev)
continue;
klist_remove(&ic->node);
klist_del(&ic->node);
if (fn)
fn(cont, dev, &ic->classdev);
else {