drm/i915: Prevent use of uninitialized pointers along error path.

[safe/jmp/linux-2.6] / drivers / gpu / drm / i915 / i915_gem.c

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0c67924..1ef7ec4 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3742,6 +3742,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
                if (object_list[i] == NULL) {
                        DRM_ERROR("Invalid object handle %d at index %d\n",
                                   exec_list[i].handle, i);
+                       /* prevent error path from reading uninitialized data */
+                       args->buffer_count = i + 1;
                        ret = -EBADF;
                        goto err;
                }
@@ -3750,6 +3752,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
                if (obj_priv->in_execbuffer) {
                        DRM_ERROR("Object %p appears more than once in object list\n",
                                   object_list[i]);
+                       /* prevent error path from reading uninitialized data */
+                       args->buffer_count = i + 1;
                        ret = -EBADF;
                        goto err;
                }