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authorJonathan Gray <jsg@cvs.openbsd.org>2014-04-12 06:08:23 +0000
committerJonathan Gray <jsg@cvs.openbsd.org>2014-04-12 06:08:23 +0000
commit30865f853ac6d2a93595a2a79dd56260ac3846e0 (patch)
tree0225485052f75e393191b4b4a17b60599e64be9e /sys/dev/pci/drm
parent12a8047fcc3a27dfbe746b0e332c8b75162d4a65 (diff)
drm/ttm: don't oops if no invalidate_caches()
From Rob Clark 8af4707afcb6d191b9cc75dfd73b9550e8276253 in ubuntu 3.8 9ef7506f7eff3fc42724269f62e30164c141661f in mainline linux
Diffstat (limited to 'sys/dev/pci/drm')
-rw-r--r--sys/dev/pci/drm/ttm/ttm_bo.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/dev/pci/drm/ttm/ttm_bo.c b/sys/dev/pci/drm/ttm/ttm_bo.c
index 9d1942f8c14..30e1eb9c20f 100644
--- a/sys/dev/pci/drm/ttm/ttm_bo.c
+++ b/sys/dev/pci/drm/ttm/ttm_bo.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ttm_bo.c,v 1.7 2014/02/10 02:35:09 jsg Exp $ */
+/* $OpenBSD: ttm_bo.c,v 1.8 2014/04/12 06:08:22 jsg Exp $ */
/**************************************************************************
*
* Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
@@ -450,9 +450,11 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
moved:
if (bo->evicted) {
- ret = bdev->driver->invalidate_caches(bdev, bo->mem.placement);
- if (ret)
- printf("Can not flush read caches\n");
+ if (bdev->driver->invalidate_caches) {
+ ret = bdev->driver->invalidate_caches(bdev, bo->mem.placement);
+ if (ret)
+ printf("Can not flush read caches\n");
+ }
bo->evicted = false;
}