From 492671339114e376aaa38626d637a2751cdef263 Mon Sep 17 00:00:00 2001 From: Balasubramani Vivekanandan Date: Mon, 3 Nov 2025 18:01:47 +0530 Subject: [PATCH] drm/xe/guc: Synchronize Dead CT worker with unbind Cancel and wait for any Dead CT worker to complete before continuing with device unbinding. Else the worker will end up using resources freed by the undind operation. Cc: Zhanjun Dong Fixes: d2c5a5a926f4 ("drm/xe/guc: Dead CT helper") Signed-off-by: Balasubramani Vivekanandan Reviewed-by: Stuart Summers Link: https://patch.msgid.link/20251103123144.3231829-6-balasubramani.vivekanandan@intel.com Signed-off-by: Lucas De Marchi --- drivers/gpu/drm/xe/xe_guc_ct.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c index e68953ef3a008..536433b061fc4 100644 --- a/drivers/gpu/drm/xe/xe_guc_ct.c +++ b/drivers/gpu/drm/xe/xe_guc_ct.c @@ -199,6 +199,9 @@ static void guc_ct_fini(struct drm_device *drm, void *arg) { struct xe_guc_ct *ct = arg; +#if IS_ENABLED(CONFIG_DRM_XE_DEBUG) + cancel_work_sync(&ct->dead.worker); +#endif ct_exit_safe_mode(ct); destroy_workqueue(ct->g2h_wq); xa_destroy(&ct->fence_lookup); -- 2.47.3