diff options
| -rw-r--r-- | include/linux/dma-fence.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h index e06bad467f55..e7ad819962e3 100644 --- a/include/linux/dma-fence.h +++ b/include/linux/dma-fence.h @@ -574,6 +574,12 @@ int dma_fence_get_status(struct dma_fence *fence); * rather than success. This must be set before signaling (so that the value * is visible before any waiters on the signal callback are woken). This * helper exists to help catching erroneous setting of #dma_fence.error. + * + * Examples of error codes which drivers should use: + * + * * %-ENODATA This operation produced no data, no other operation affected. + * * %-ECANCELED All operations from the same context have been canceled. + * * %-ETIME Operation caused a timeout and potentially device reset. */ static inline void dma_fence_set_error(struct dma_fence *fence, int error) |