[PATCH 4.14 205/293] dma-buf: balance refcount inbalance

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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
@@ -1115,6 +1115,7 @@ 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();
 





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