diff options
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/dma-fence.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index cda40cbd8c43..70f4fcc0bc03 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -339,18 +339,20 @@ dma_fence_default_wait_cb(struct dma_fence *fence, struct dma_fence_cb *cb) * @timeout: [in] timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT * * Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or the - * remaining timeout in jiffies on success. + * remaining timeout in jiffies on success. If timeout is zero the value one is + * returned if the fence is already signaled for consistency with other + * functions taking a jiffies timeout. */ signed long dma_fence_default_wait(struct dma_fence *fence, bool intr, signed long timeout) { struct default_wait_cb cb; unsigned long flags; - signed long ret = timeout; + signed long ret = timeout ? timeout : 1; bool was_set; if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) - return timeout; + return ret; spin_lock_irqsave(fence->lock, flags); |