Add check for the return value of alloc_ordered_workqueue()
in xe_gt_alloc() to catch potential exception.

Fixes: e2d84e5b2205 ("drm/xe: Mark GT work queue with WQ_MEM_RECLAIM")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
---
 drivers/gpu/drm/xe/xe_gt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
index 5d6fb79957b6..0f42bbcb8d42 100644
--- a/drivers/gpu/drm/xe/xe_gt.c
+++ b/drivers/gpu/drm/xe/xe_gt.c
@@ -79,6 +79,8 @@ struct xe_gt *xe_gt_alloc(struct xe_tile *tile)
 	gt->tile = tile;
 	gt->ordered_wq = alloc_ordered_workqueue("gt-ordered-wq",
 						 WQ_MEM_RECLAIM);
+	if (!gt->ordered_wq)
+		return ERR_PTR(-ENOMEM);
 
 	err = drmm_add_action_or_reset(&gt_to_xe(gt)->drm, gt_fini, gt);
 	if (err)
-- 
2.25.1

On Wed, Feb 19, 2025 at 05:56:59PM +0800, Haoxiang Li wrote:
>Add check for the return value of alloc_ordered_workqueue()
>in xe_gt_alloc() to catch potential exception.
>
>Fixes: e2d84e5b2205 ("drm/xe: Mark GT work queue with WQ_MEM_RECLAIM")
>Cc: stable@vger.kernel.org
>Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>

thanks
Lucas De Marchi

>---
> drivers/gpu/drm/xe/xe_gt.c | 2 ++
> 1 file changed, 2 insertions(+)
>
>diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
>index 5d6fb79957b6..0f42bbcb8d42 100644
>--- a/drivers/gpu/drm/xe/xe_gt.c
>+++ b/drivers/gpu/drm/xe/xe_gt.c
>@@ -79,6 +79,8 @@ struct xe_gt *xe_gt_alloc(struct xe_tile *tile)
> 	gt->tile = tile;
> 	gt->ordered_wq = alloc_ordered_workqueue("gt-ordered-wq",
> 						 WQ_MEM_RECLAIM);
>+	if (!gt->ordered_wq)
>+		return ERR_PTR(-ENOMEM);
>
> 	err = drmm_add_action_or_reset(&gt_to_xe(gt)->drm, gt_fini, gt);
> 	if (err)
>-- 
>2.25.1
>