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Diffstat (limited to 'drivers/dma-buf/dma-fence.c')
| -rw-r--r-- | drivers/dma-buf/dma-fence.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index d195d617076d..0918d3f003d6 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -240,6 +240,8 @@ EXPORT_SYMBOL(dma_fence_enable_sw_signaling); * after it signals with dma_fence_signal. The callback itself can be called * from irq context. * + * Returns 0 in case of success, -ENOENT if the fence is already signaled + * and -EINVAL in case of error. */ int dma_fence_add_callback(struct dma_fence *fence, struct dma_fence_cb *cb, dma_fence_func_t func) |