From: Rob Clark <robdclark@xxxxxxxxxxxx>
Elsewhere we treat zero as "no fence" and __msm_gem_submit_destroy()
skips removal from fence_idr. We could alternately change this to use
negative values for "no fence" but I think it is more clear to not allow
zero as a valid fence_id.
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
---
drivers/gpu/drm/msm/msm_gem_submit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 282628d6b72c..6cfa984dee6a 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -881,7 +881,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
* to the underlying fence.
*/
submit->fence_id = idr_alloc_cyclic(&queue->fence_idr,
- submit->user_fence, 0, INT_MAX, GFP_KERNEL);
+ submit->user_fence, 1, INT_MAX, GFP_KERNEL);
if (submit->fence_id < 0) {
ret = submit->fence_id = 0;
submit->fence_id = 0;
--
2.33.1
