Am 21.11.2017 um 15:08 schrieb Rob Clark:
If we are testing if a reservation object's fences have been signaled with timeout=0 (non-blocking), we need to pass 0 for timeout to dma_fence_wait_timeout().
Plus bonus spelling correction.
Signed-off-by: Rob Clark robdclark@gmail.com
Reviewed-by: Christian König christian.koenig@amd.com
drivers/dma-buf/reservation.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/dma-buf/reservation.c b/drivers/dma-buf/reservation.c index dec3a815455d..71f51140a9ad 100644 --- a/drivers/dma-buf/reservation.c +++ b/drivers/dma-buf/reservation.c @@ -420,7 +420,7 @@ EXPORT_SYMBOL_GPL(reservation_object_get_fences_rcu);
- RETURNS
- Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or
- greater than zer on success.
*/ long reservation_object_wait_timeout_rcu(struct reservation_object *obj, bool wait_all, bool intr,
- greater than zero on success.
@@ -483,7 +483,14 @@ long reservation_object_wait_timeout_rcu(struct reservation_object *obj, goto retry; }
ret = dma_fence_wait_timeout(fence, intr, ret);
/** Note that dma_fence_wait_timeout() will return 1 if* the fence is already signaled, so in the wait_all* case when we go through the retry loop again, ret* will be greater than 0 and we don't want this to* cause _wait_timeout() to block*/ret = dma_fence_wait_timeout(fence, intr, timeout ? ret : 0);