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authorGreg Kroah-Hartman <gregkh@suse.de>2006-09-13 15:34:05 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-25 21:08:38 -0700
commitc47ed219ba81632595e9f02e27318151fec16c9e (patch)
tree7c6d6c07122c26c12719c676b6a81f731122347d /drivers/base/core.c
parentc205ef4880273d2de4ee5388d4e52227ff688cc4 (diff)
downloadop-kernel-dev-c47ed219ba81632595e9f02e27318151fec16c9e.zip
op-kernel-dev-c47ed219ba81632595e9f02e27318151fec16c9e.tar.gz
Class: add support for class interfaces for devices
When moving class_device usage over to device, we need to handle class_interfaces properly with devices. This patch adds that support. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/core.c')
-rw-r--r--drivers/base/core.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index e21a65f..1d3d358 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -372,6 +372,7 @@ int device_add(struct device *dev)
{
struct device *parent = NULL;
char *class_name = NULL;
+ struct class_interface *class_intf;
int error = -EINVAL;
dev = get_device(dev);
@@ -451,9 +452,14 @@ int device_add(struct device *dev)
klist_add_tail(&dev->knode_parent, &parent->klist_children);
if (dev->class) {
- /* tie the class to the device */
down(&dev->class->sem);
+ /* tie the class to the device */
list_add_tail(&dev->node, &dev->class->devices);
+
+ /* notify any interfaces that the device is here */
+ list_for_each_entry(class_intf, &dev->class->interfaces, node)
+ if (class_intf->add_dev)
+ class_intf->add_dev(dev, class_intf);
up(&dev->class->sem);
}
@@ -548,6 +554,7 @@ void device_del(struct device * dev)
{
struct device * parent = dev->parent;
char *class_name = NULL;
+ struct class_interface *class_intf;
if (parent)
klist_del(&dev->knode_parent);
@@ -563,6 +570,11 @@ void device_del(struct device * dev)
}
kfree(class_name);
down(&dev->class->sem);
+ /* notify any interfaces that the device is now gone */
+ list_for_each_entry(class_intf, &dev->class->interfaces, node)
+ if (class_intf->remove_dev)
+ class_intf->remove_dev(dev, class_intf);
+ /* remove the device from the class list */
list_del_init(&dev->node);
up(&dev->class->sem);
}
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