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| author | Greg Kroah-Hartman | 2006-09-13 15:34:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2006-09-26 06:08:38 +0200 |
| commit | c47ed219ba81632595e9f02e27318151fec16c9e (patch) | |
| tree | 7c6d6c07122c26c12719c676b6a81f731122347d /drivers/base/core.c | |
| parent | Driver core: create devices/virtual/ tree (diff) | |
| download | kernel-qcow2-linux-c47ed219ba81632595e9f02e27318151fec16c9e.tar.gz kernel-qcow2-linux-c47ed219ba81632595e9f02e27318151fec16c9e.tar.xz kernel-qcow2-linux-c47ed219ba81632595e9f02e27318151fec16c9e.zip | |
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.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index e21a65fc043e..1d3d3582fcca 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); } |