Hi Lowry, Thanks for this cleanup. On Wed, Jul 31, 2019 at 11:04:45AM +0000, Lowry Li (Arm Technology China) wrote: > During it signals the completion of a writeback job, after releasing > the out_fence, we'd clear the pointer. > > Check if fence left over in drm_writeback_cleanup_job(), release it. > > Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@xxxxxxx> > --- > drivers/gpu/drm/drm_writeback.c | 23 +++++++++++++++-------- > 1 file changed, 15 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/drm_writeback.c b/drivers/gpu/drm/drm_writeback.c > index ff138b6..43d9e3b 100644 > --- a/drivers/gpu/drm/drm_writeback.c > +++ b/drivers/gpu/drm/drm_writeback.c > @@ -324,6 +324,9 @@ void drm_writeback_cleanup_job(struct drm_writeback_job *job) > if (job->fb) > drm_framebuffer_put(job->fb); > > + if (job->out_fence) I'm thinking it might be a good idea to signal the fence with an error here, if it's not already signaled. Otherwise, if there's someone waiting (which there shouldn't be), they're going to be waiting a very long time :-) Thanks, -Brian > + dma_fence_put(job->out_fence); > + > kfree(job); > }
