[PATCH] dma-buf/reservation: should keep the new fence in add_shared_inplace

[Monk Liu]

Change-Id: If6a979ba9fd6c923b82212f35f07a9ff31c86767
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/dma-buf/reservation.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/reservation.c b/drivers/dma-buf/reservation.c
index 375de41..9b875267 100644
--- a/drivers/dma-buf/reservation.c
+++ b/drivers/dma-buf/reservation.c
@@ -118,7 +118,7 @@ reservation_object_add_shared_inplace(struct reservation_object *obj,
 		old_fence = rcu_dereference_protected(fobj->shared[i],
 						reservation_object_held(obj));
 
-		if (old_fence->context == fence->context) {
+		if (dma_fence_is_later(fence, old_fence)) {
 			/* memory barrier is added by write_seqcount_begin */
 			RCU_INIT_POINTER(fobj->shared[i], fence);
 			write_seqcount_end(&obj->seq);
-- 
2.7.4