linux-kernel - [PATCH] drm/xe: Add check for alloc_ordered

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Message-Id: <20250219095659.2613487-1-haoxiang_li2024@163.com>
Date: Wed, 19 Feb 2025 17:56:59 +0800
From: Haoxiang Li <haoxiang_li2024@....com>
To: lucas.demarchi@...el.com,
	thomas.hellstrom@...ux.intel.com,
	rodrigo.vivi@...el.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch,
	himal.prasad.ghimiray@...el.com,
	badal.nilawar@...el.com,
	matthew.brost@...el.com
Cc: intel-xe@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Haoxiang Li <haoxiang_li2024@....com>,
	stable@...r.kernel.org
Subject: [PATCH] drm/xe: Add check for alloc_ordered_workqueue()

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@...r.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@....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