[PATCH] drm/i915/display: Add check for alloc_ordered_workqueue() and alloc_workqueue()

[Haoxiang Li]

Add check for the return value of alloc_ordered_workqueue()
and alloc_workqueue() to catch potential exception.

Fixes: 40053823baad ("drm/i915/display: move modeset probe/remove functions to intel_display_driver.c")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Haoxiang Li <haoxiang_li2024@xxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_display_driver.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
index 50ec0c3c7588..dfe5b779aefd 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.c
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
@@ -245,6 +245,11 @@ int intel_display_driver_probe_noirq(struct intel_display *display)
 						WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE);
 	display->wq.cleanup = alloc_workqueue("i915_cleanup", WQ_HIGHPRI, 0);
 
+	if (!display->wq.modeset || !display->wq.flip || !display->wq.cleanup) {
+		ret = -ENOMEM;
+		goto cleanup_vga_client_pw_domain_dmc;
+	}
+
 	intel_mode_config_init(display);
 
 	ret = intel_cdclk_init(display);
-- 
2.25.1