[PATCH v1 1/4] drm/xe/queue: Call fini on exec queue creation fail

[Tomasz Lis <tomasz.lis@intel.com>]

Every call to queue init should have a corresponding fini call.
Skipping this would mean skipping removal of the queue from GuC list
(which is part of guc_id allocation). A damaged queue stored in
exec_queue_lookup list would lead to invalid memory reference,
sooner or later.

Call fini to free guc_id. This must be done before any internal
LRCs are freed.

Fixes: 3c1fa4aa60b1 ("drm/xe: Move queue init before LRC creation")
Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
---
 drivers/gpu/drm/xe/xe_exec_queue.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c
index 66d0e10ee2c4..42849be46166 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.c
+++ b/drivers/gpu/drm/xe/xe_exec_queue.c
@@ -324,6 +324,8 @@ static int __xe_exec_queue_init(struct xe_exec_queue *q, u32 exec_queue_flags)
 	return 0;
 
 err_lrc:
+	q->ops->fini(q);
+
 	for (i = i - 1; i >= 0; --i)
 		xe_lrc_put(q->lrc[i]);
 	return err;
-- 
2.25.1