[PATCH] create/remove debugfs roots during driver init/cleanup

[Ben G. <bg...@gm...>]

---
 drivers/gpu/drm/drm_drv.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index febb517..9b74efb 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -46,9 +46,11 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/debugfs.h>
 #include "drmP.h"
 #include "drm_core.h"
 
+
 static int drm_version(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv);
 
@@ -378,6 +380,13 @@ static int __init drm_core_init(void)
 		goto err_p3;
 	}
 
+        drm_debugfs_root = debugfs_create_dir("dri", NULL);
+        if (!drm_debugfs_root) {
+                DRM_ERROR("Cannot create /debugfs/dri\n");
+                ret = -1;
+                goto err_p3;
+        }
+
 	drm_mem_init();
 
 	DRM_INFO("Initialized %s %d.%d.%d %s\n",
@@ -396,6 +405,7 @@ err_p1:
 static void __exit drm_core_exit(void)
 {
 	remove_proc_entry("dri", NULL);
+	debugfs_remove(drm_debugfs_root);
 	drm_sysfs_destroy();
 
 	unregister_chrdev(DRM_MAJOR, "drm");
-- 
1.6.0.6