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>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/base/class.c b/drivers/base/class.c
index cbdf47c0c60d..b06b0e2b9c62 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -842,6 +842,7 @@ int class_interface_register(struct class_interface *class_intf)
 {
         struct class *parent;
         struct class_device *class_dev;
+        struct device *dev;
 
         if (!class_intf || !class_intf->class)
                 return -ENODEV;
@@ -856,6 +857,10 @@ int class_interface_register(struct class_interface *class_intf)
                 list_for_each_entry(class_dev, &parent->children, node)
                         class_intf->add(class_dev, class_intf);
         }
+        if (class_intf->add_dev) {
+                list_for_each_entry(dev, &parent->devices, node)
+                        class_intf->add_dev(dev, class_intf);
+        }
         up(&parent->sem);
 
         return 0;
@@ -865,6 +870,7 @@ void class_interface_unregister(struct class_interface *class_intf)
 {
         struct class * parent = class_intf->class;
         struct class_device *class_dev;
+        struct device *dev;
 
         if (!parent)
                 return;
@@ -875,6 +881,10 @@ void class_interface_unregister(struct class_interface *class_intf)
                 list_for_each_entry(class_dev, &parent->children, node)
                         class_intf->remove(class_dev, class_intf);
         }
+        if (class_intf->remove_dev) {
+                list_for_each_entry(dev, &parent->devices, node)
+                        class_intf->remove_dev(dev, class_intf);
+        }
         up(&parent->sem);
 
         class_put(parent);