From: Jérôme Glisse <jglisse@xxxxxxxxxx> commit 5e383a9798990c69fc759a4930de224bb497e62c upstream. The debugfs take reference on fence without dropping them. Signed-off-by: Jérôme Glisse <jglisse@xxxxxxxxxx> Cc: Christian König <christian.koenig@xxxxxxx> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx> Cc: linux-media@xxxxxxxxxxxxxxx Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Cc: linaro-mm-sig@xxxxxxxxxxxxxxxx Cc: Stéphane Marchesin <marcheu@xxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Reviewed-by: Christian König <christian.koenig@xxxxxxx> Signed-off-by: Sumit Semwal <sumit.semwal@xxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20181206161840.6578-1-jglisse@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/dma-buf/dma-buf.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -1069,6 +1069,7 @@ static int dma_buf_debug_show(struct seq fence->ops->get_driver_name(fence), fence->ops->get_timeline_name(fence), dma_fence_is_signaled(fence) ? "" : "un"); + dma_fence_put(fence); } rcu_read_unlock();