[PATCH v3] dma-buf/sync_file: Increment refcount of fence when all are signaled.

Hi Rafael, On 16 September 2016 at 00:44, Rafael Antognolli wrote: > When we merge several fences, if all of them are signaled already, we > still keep one of them. So instead of using add_fence(), which will not > increase the refcount of signaled fences, we should explicitly call > fence_get()

[PATCH v3] dma-buf/sync_file: Increment refcount of fence when all are signaled.

When we merge several fences, if all of them are signaled already, we still keep one of them. So instead of using add_fence(), which will not increase the refcount of signaled fences, we should explicitly call fence_get() for the fence we are keeping. This patch fixes a kernel panic that can be