diff --git a/drivers/gpu/drm/drm_dumb_buffers.c b/drivers/gpu/drm/drm_dumb_buffers.c
index 70032bba1c97..9916aaf5b3f2 100644
--- a/drivers/gpu/drm/drm_dumb_buffers.c
+++ b/drivers/gpu/drm/drm_dumb_buffers.c
@@ -99,7 +99,30 @@ int drm_mode_create_dumb(struct drm_device *dev,
 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
 			       void *data, struct drm_file *file_priv)
 {
-	return drm_mode_create_dumb(dev, data, file_priv);
+	struct drm_mode_create_dumb *args = data;
+	int err;
+
+	err = drm_mode_create_dumb(dev, args, file_priv);
+	if (err) {
+		args->handle = 0;
+		args->pitch = 0;
+		args->size = 0;
+	}
+	return err;
+}
+
+static int drm_mode_mmap_dumb(struct drm_device *dev, struct drm_mode_map_dumb *args,
+			      struct drm_file *file_priv)
+{
+	if (!dev->driver->dumb_create)
+		return -ENOSYS;
+
+	if (dev->driver->dumb_map_offset)
+		return dev->driver->dumb_map_offset(file_priv, dev, args->handle,
+						    &args->offset);
+	else
+		return drm_gem_dumb_map_offset(file_priv, dev, args->handle,
+					       &args->offset);
 }
 
 /**
@@ -120,17 +143,12 @@ int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
 			     void *data, struct drm_file *file_priv)
 {
 	struct drm_mode_map_dumb *args = data;
+	int err;
 
-	if (!dev->driver->dumb_create)
-		return -ENOSYS;
-
-	if (dev->driver->dumb_map_offset)
-		return dev->driver->dumb_map_offset(file_priv, dev,
-						    args->handle,
-						    &args->offset);
-	else
-		return drm_gem_dumb_map_offset(file_priv, dev, args->handle,
-					       &args->offset);
+	err = drm_mode_mmap_dumb(dev, args, file_priv);
+	if (err)
+		args->offset = 0;
+	return err;
 }
 
 int drm_mode_destroy_dumb(struct drm_device *dev, u32 handle,