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-rw-r--r--drivers/dma-buf/dma-fence.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 4edb9fd3cf47..7b5b40d6b70e 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -181,6 +181,13 @@ void dma_fence_release(struct kref *kref)
}
EXPORT_SYMBOL(dma_fence_release);
+/**
+ * dma_fence_free - default release function for &dma_fence.
+ * @fence: fence to release
+ *
+ * This is the default implementation for &dma_fence_ops.release. It calls
+ * kfree_rcu() on @fence.
+ */
void dma_fence_free(struct dma_fence *fence)
{
kfree_rcu(fence, rcu);
@@ -560,7 +567,7 @@ 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);
@@ -572,6 +579,10 @@ dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops,
fence->flags = 0UL;
fence->error = 0;
+ if (!ops->enable_signaling)
+ set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
+ &fence->flags);
+
trace_dma_fence_init(fence);
}
EXPORT_SYMBOL(dma_fence_init);