diff options
Diffstat (limited to 'drivers/dma-buf/dma-fence.c')
| -rw-r--r-- | drivers/dma-buf/dma-fence.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index 4edb9fd3cf47..dd01a1720be9 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -200,7 +200,8 @@ void dma_fence_enable_sw_signaling(struct dma_fence *fence) if (!test_and_set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, &fence->flags) && - !test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) { + !test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags) && + fence->ops->enable_signaling) { trace_dma_fence_enable_signal(fence); spin_lock_irqsave(fence->lock, flags); @@ -260,7 +261,7 @@ int dma_fence_add_callback(struct dma_fence *fence, struct dma_fence_cb *cb, if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) ret = -ENOENT; - else if (!was_set) { + else if (!was_set && fence->ops->enable_signaling) { trace_dma_fence_enable_signal(fence); if (!fence->ops->enable_signaling(fence)) { @@ -388,7 +389,7 @@ dma_fence_default_wait(struct dma_fence *fence, bool intr, signed long timeout) if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) goto out; - if (!was_set) { + if (!was_set && fence->ops->enable_signaling) { trace_dma_fence_enable_signal(fence); if (!fence->ops->enable_signaling(fence)) { @@ -560,7 +561,7 @@ dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops, spinlock_t *lock, u64 context, unsigned seqno) { BUG_ON(!lock); - BUG_ON(!ops || !ops->wait || !ops->enable_signaling || + BUG_ON(!ops || !ops->wait || !ops->get_driver_name || !ops->get_timeline_name); kref_init(&fence->refcount); |