[PATCH v2] drm/xe: Properly handle alloc_guc_id() failure

[Niranjana Vishwanathapura]

Release the submission_state lock if alloc_guc_id() fails.

v2: Add Fixes tag and CC stable kernel

Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: <stable at vger.kernel.org> # v6.8+
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura at intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das at intel.com>
Reviewed-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/xe/xe_guc_submit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c
index ad2b8067d071..c0b901c5565b 100644
--- a/drivers/gpu/drm/xe/xe_guc_submit.c
+++ b/drivers/gpu/drm/xe/xe_guc_submit.c
@@ -1304,6 +1304,7 @@ static int guc_exec_queue_init(struct xe_exec_queue *q)
 	return 0;
 
 err_entity:
+	mutex_unlock(&guc->submission_state.lock);
 	xe_sched_entity_fini(&ge->entity);
 err_sched:
 	xe_sched_fini(&ge->sched);
-- 
2.43.0