From 7d5f783eca3302ec7efa164e2980c75e5e591585 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 1 May 2008 16:38:37 -0700
Subject: [PATCH] Make GEM object handles be nonzero.

---
 linux-core/drm_gem.c | 3 ++-
 shared-core/drm.h    | 6 +++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/linux-core/drm_gem.c b/linux-core/drm_gem.c
index 7326d6b..f6038d5 100644
--- a/linux-core/drm_gem.c
+++ b/linux-core/drm_gem.c
@@ -182,7 +182,8 @@ drm_gem_alloc_ioctl(struct drm_device *dev, void *data,
 			return -EFAULT;
 		}
 
-		ret = idr_get_new(&file_priv->object_idr, obj, &handle);
+		ret = idr_get_new_above(&file_priv->object_idr, obj, 1,
+					&handle);
 	} while (ret == -EAGAIN);
 
 	if (ret != 0) {
diff --git a/shared-core/drm.h b/shared-core/drm.h
index 6d62af6..1f49cbb 100644
--- a/shared-core/drm.h
+++ b/shared-core/drm.h
@@ -968,7 +968,11 @@ struct drm_gem_alloc {
 	 * The (page-aligned) allocated size for the object will be returned.
 	 */
 	uint32_t size;
-	/** Returned handle for the object. */
+	/**
+	 * Returned handle for the object.
+	 *
+	 * Object handles are nonzero.
+	 */
 	uint32_t handle;
 };
 
-- 
2.7.4