From 65b698bf400f00ab452d5f27ecad84ab8c826014 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Thu, 29 Sep 2022 19:53:53 +0200 Subject: [PATCH] drm/sched: add missing NULL check in drm_sched_get_cleanup_job v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Otherwise we would crash if the job is not resubmitted. v2: fix second usage of s_fence->parent as well. Signed-off-by: Christian König Reviewed-by: Steven Price Link: https://patchwork.freedesktop.org/patch/msgid/20221004132831.134986-1-christian.koenig@amd.com --- drivers/gpu/drm/scheduler/sched_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index ce86b03e8386..4cc59bae38dd 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -919,7 +919,8 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched) job = list_first_entry_or_null(&sched->pending_list, struct drm_sched_job, list); - if (job && dma_fence_is_signaled(job->s_fence->parent)) { + if (job && (!job->s_fence->parent || + dma_fence_is_signaled(job->s_fence->parent))) { /* remove job from pending_list */ list_del_init(&job->list); @@ -929,7 +930,7 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched) next = list_first_entry_or_null(&sched->pending_list, typeof(*next), list); - if (next) { + if (next && job->s_fence->parent) { next->s_fence->scheduled.timestamp = job->s_fence->parent->timestamp; /* start TO timer for next job */