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

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Message-Id: <20250219124645.2631945-1-haoxiang_li2024@163.com>
Date: Wed, 19 Feb 2025 20:46:45 +0800
From: Haoxiang Li <haoxiang_li2024@....com>
To: jani.nikula@...ux.intel.com,
	rodrigo.vivi@...el.com,
	lucas.demarchi@...el.com,
	thomas.hellstrom@...ux.intel.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch
Cc: intel-gfx@...ts.freedesktop.org,
	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/display: Add check for alloc_ordered_workqueue()

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

Fixes: 44e694958b95 ("drm/xe/display: Implement display support")
Cc: stable@...r.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@....com>
---
 drivers/gpu/drm/xe/display/xe_display.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
index b3921dbc52ff..b5d6ae05d936 100644
--- a/drivers/gpu/drm/xe/display/xe_display.c
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -97,6 +97,8 @@ int xe_display_create(struct xe_device *xe)
 	spin_lock_init(&xe->display.fb_tracking.lock);
 
 	xe->display.hotplug.dp_wq = alloc_ordered_workqueue("xe-dp", 0);
+	if (!xe->display.hotplug.dp_wq)
+		return -ENOMEM;
 
 	return drmm_add_action_or_reset(&xe->drm, display_destroy, NULL);
 }
-- 
2.25.1