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authorThomas Hellstrom <thellstrom@vmware.com>2009-07-21 17:45:13 +0200
committerDave Airlie <airlied@redhat.com>2009-07-29 07:56:04 +0200
commit4677f15c60421d48566c48c3149474e64977f071 (patch)
tree674c1099d98e0a6d441b9cb53d7e872bdf7136a0 /drivers/gpu
parentdrm/radeon/kms: vram sizing on certain r100 chips needs workaround. (diff)
downloadlinux-4677f15c60421d48566c48c3149474e64977f071.tar.xz
linux-4677f15c60421d48566c48c3149474e64977f071.zip
drm/ttm: Fix an oops and sync object leak.
The code was potentially dereferencig a NULL sync object pointer. At the same time a sync object reference was potentially leaked. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo_util.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index bdec583901eb..3e5d0c4ad85c 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -509,8 +509,8 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
if (evict) {
ret = ttm_bo_wait(bo, false, false, false);
spin_unlock(&bo->lock);
- driver->sync_obj_unref(&bo->sync_obj);
-
+ if (tmp_obj)
+ driver->sync_obj_unref(&tmp_obj);
if (ret)
return ret;
@@ -532,6 +532,8 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
set_bit(TTM_BO_PRIV_FLAG_MOVING, &bo->priv_flags);
spin_unlock(&bo->lock);
+ if (tmp_obj)
+ driver->sync_obj_unref(&tmp_obj);
ret = ttm_buffer_object_transfer(bo, &ghost_obj);
if (ret)