From: Gustavo Padovan gustavo.padovan@collabora.com

Document return values for this function.

Signed-off-by: Gustavo Padovan gustavo.padovan@collabora.com --- drivers/dma-buf/dma-fence.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index d1f1f45..809b397 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -239,6 +239,8 @@ 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)