drivers/dma-buf/dma-fence.c:131 in function dma_fence_signal_locked,
if (WARN_ON(!fence)) should be before lockdep_assert_held(fence->lock);
otherwise there is not any meaning.
Signed-off-by: Xinpeng Liu <danielliu861@xxxxxxxxx>
---
drivers/dma-buf/dma-fence.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 59ac96e..0b11063 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -131,10 +131,9 @@ int dma_fence_signal_locked(struct dma_fence *fence)
struct dma_fence_cb *cur, *tmp;
int ret = 0;
- lockdep_assert_held(fence->lock);
-
if (WARN_ON(!fence))
return -EINVAL;
+ lockdep_assert_held(fence->lock);
if (test_and_set_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) {
ret = -EINVAL;
--
1.8.3.1
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