class: rename "sem" to "class_sem" in internal class structure

This renames the struct class "sem" field to be "class_sem" to make
things easier when struct bus_type and struct class merge in the future.
It also makes grepping for fields easier as well.

Based on an idea from Kay.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3 files changed, 17 insertions, 17 deletions

diff --git a/drivers/base/base.h b/drivers/base/base.h
index a77d4bd2ea63..4435732437a5 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -45,7 +45,7 @@ struct driver_private {
  * @class_devices - list of devices associated with this class
  * @class_interfaces - list of class_interfaces associated with this class
  * @class_dirs -
- * @sem - semaphore to protect the children, devices, and interfaces lists.
+ * @class_sem - semaphore to protect the children, devices, and interfaces lists.
  * @class - pointer back to the struct class that this structure is associated
  * with.
  *
@@ -58,7 +58,7 @@ struct class_private {
         struct list_head class_devices;
         struct list_head class_interfaces;
         struct kset class_dirs;
-        struct semaphore sem;
+        struct semaphore class_sem;
         struct class *class;
 };
 #define to_class(obj)   \
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 86778b86496e..d24d21114ccb 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -147,7 +147,7 @@ int class_register(struct class *cls)
         INIT_LIST_HEAD(&cp->class_devices);
         INIT_LIST_HEAD(&cp->class_interfaces);
         kset_init(&cp->class_dirs);
-        init_MUTEX(&cp->sem);
+        init_MUTEX(&cp->class_sem);
         error = kobject_set_name(&cp->class_subsys.kobj, "%s", cls->name);
         if (error) {
                 kfree(cp);
@@ -278,7 +278,7 @@ char *make_class_name(const char *name, struct kobject *kobj)
  * We check the return of @fn each time. If it returns anything
  * other than 0, we break out and return that value.
  *
- * Note, we hold class->sem in this function, so it can not be
+ * Note, we hold class->class_sem in this function, so it can not be
  * re-acquired in @fn, otherwise it will self-deadlocking. For
  * example, calls to add or remove class members would be verboten.
  */
@@ -290,7 +290,7 @@ int class_for_each_device(struct class *class, struct device *start,
 
         if (!class)
                 return -EINVAL;
-        down(&class->p->sem);
+        down(&class->p->class_sem);
         list_for_each_entry(dev, &class->p->class_devices, node) {
                 if (start) {
                         if (start == dev)
@@ -303,7 +303,7 @@ int class_for_each_device(struct class *class, struct device *start,
                 if (error)
                         break;
         }
-        up(&class->p->sem);
+        up(&class->p->class_sem);
 
         return error;
 }
@@ -326,7 +326,7 @@ EXPORT_SYMBOL_GPL(class_for_each_device);
  *
  * Note, you will need to drop the reference with put_device() after use.
  *
- * We hold class->sem in this function, so it can not be
+ * We hold class->class_sem in this function, so it can not be
  * re-acquired in @match, otherwise it will self-deadlocking. For
  * example, calls to add or remove class members would be verboten.
  */
@@ -340,7 +340,7 @@ struct device *class_find_device(struct class *class, struct device *start,
         if (!class)
                 return NULL;
 
-        down(&class->p->sem);
+        down(&class->p->class_sem);
         list_for_each_entry(dev, &class->p->class_devices, node) {
                 if (start) {
                         if (start == dev)
@@ -354,7 +354,7 @@ struct device *class_find_device(struct class *class, struct device *start,
                 } else
                         put_device(dev);
         }
-        up(&class->p->sem);
+        up(&class->p->class_sem);
 
         return found ? dev : NULL;
 }
@@ -372,13 +372,13 @@ int class_interface_register(struct class_interface *class_intf)
         if (!parent)
                 return -EINVAL;
 
-        down(&parent->p->sem);
+        down(&parent->p->class_sem);
         list_add_tail(&class_intf->node, &parent->p->class_interfaces);
         if (class_intf->add_dev) {
                 list_for_each_entry(dev, &parent->p->class_devices, node)
                         class_intf->add_dev(dev, class_intf);
         }
-        up(&parent->p->sem);
+        up(&parent->p->class_sem);
 
         return 0;
 }
@@ -391,13 +391,13 @@ void class_interface_unregister(struct class_interface *class_intf)
         if (!parent)
                 return;
 
-        down(&parent->p->sem);
+        down(&parent->p->class_sem);
         list_del_init(&class_intf->node);
         if (class_intf->remove_dev) {
                 list_for_each_entry(dev, &parent->p->class_devices, node)
                         class_intf->remove_dev(dev, class_intf);
         }
-        up(&parent->p->sem);
+        up(&parent->p->class_sem);
 
         class_put(parent);
 }
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 6e1cff296d9f..b90ae6f7be86 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -907,7 +907,7 @@ int device_add(struct device *dev)
                 klist_add_tail(&dev->knode_parent, &parent->klist_children);
 
         if (dev->class) {
-                down(&dev->class->p->sem);
+                down(&dev->class->p->class_sem);
                 /* tie the class to the device */
                 list_add_tail(&dev->node, &dev->class->p->class_devices);
 
@@ -916,7 +916,7 @@ int device_add(struct device *dev)
                                     &dev->class->p->class_interfaces, node)
                         if (class_intf->add_dev)
                                 class_intf->add_dev(dev, class_intf);
-                up(&dev->class->p->sem);
+                up(&dev->class->p->class_sem);
         }
  Done:
         put_device(dev);
@@ -1017,7 +1017,7 @@ void device_del(struct device *dev)
         if (dev->class) {
                 device_remove_class_symlinks(dev);
 
-                down(&dev->class->p->sem);
+                down(&dev->class->p->class_sem);
                 /* notify any interfaces that the device is now gone */
                 list_for_each_entry(class_intf,
                                     &dev->class->p->class_interfaces, node)
@@ -1025,7 +1025,7 @@ void device_del(struct device *dev)
                                 class_intf->remove_dev(dev, class_intf);
                 /* remove the device from the class list */
                 list_del_init(&dev->node);
-                up(&dev->class->p->sem);
+                up(&dev->class->p->class_sem);
         }
         device_remove_file(dev, &uevent_attr);
         device_remove_attrs(dev);