@@ -374,8 +374,6 @@ static void drm_unplug_minor(struct drm_minor *minor)
*/
void drm_put_dev(struct drm_device *dev)
{
- struct drm_map_list *r_list, *list_temp;
-
DRM_DEBUG("\n");
if (!dev) {
@@ -383,26 +381,7 @@ void drm_put_dev(struct drm_device *dev)
return;
}
- drm_lastclose(dev);
-
- if (dev->driver->unload)
- dev->driver->unload(dev);
-
- if (dev->driver->bus->agp_destroy)
- dev->driver->bus->agp_destroy(dev);
-
- drm_vblank_cleanup(dev);
-
- list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
- drm_rmmap(dev, r_list->map);
-
- if (drm_core_check_feature(dev, DRIVER_MODESET))
- drm_put_minor(&dev->control);
-
- drm_put_minor(&dev->primary);
-
- list_del(&dev->driver_item);
-
+ drm_dev_unregister(dev);
drm_dev_free(dev);
}
EXPORT_SYMBOL(drm_put_dev);
@@ -592,3 +571,37 @@ out_unlock:
return ret;
}
EXPORT_SYMBOL(drm_dev_register);
+
+/**
+ * drm_dev_unregister - Unregister DRM device
+ * @dev: Device to unregister
+ *
+ * Unregister the DRM device from the system. This does the reverse of
+ * drm_dev_register() but does not deallocate the device. The caller must call
+ * drm_dev_free() to free all resources.
+ */
+void drm_dev_unregister(struct drm_device *dev)
+{
+ struct drm_map_list *r_list, *list_temp;
+
+ drm_lastclose(dev);
+
+ if (dev->driver->unload)
+ dev->driver->unload(dev);
+
+ if (dev->driver->bus->agp_destroy)
+ dev->driver->bus->agp_destroy(dev);
+
+ drm_vblank_cleanup(dev);
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
+ drm_rmmap(dev, r_list->map);
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+
+ drm_put_minor(&dev->primary);
+
+ list_del(&dev->driver_item);
+}
+EXPORT_SYMBOL(drm_dev_unregister);
@@ -1709,6 +1709,7 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
void drm_dev_free(struct drm_device *dev);
int drm_dev_register(struct drm_device *dev);
+void drm_dev_unregister(struct drm_device *dev);
int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
/*@}*/
Analog to drm_dev_register(), we now provide drm_dev_unregister() which does the reverse. drm_dev_put() is still in place and combines the calls to drm_dev_unregister() and drm_dev_free() so buses don't have to change. *_get() and *_put() are used for reference-counting in the kernel. However, drm_dev_put() definitely does not do any kind of ref-counting. Hence, use the more appropriate *_register(), *_unregister(), *_alloc() and *_free() names. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> --- drivers/gpu/drm/drm_stub.c | 57 ++++++++++++++++++++++++++++------------------ include/drm/drmP.h | 1 + 2 files changed, 36 insertions(+), 22 deletions(-)