drm/xe: Properly handle alloc_guc_id() failure

Release the submission_state lock if alloc_guc_id() fails.

v2: Add Fixes tag and CC stable kernel

Fixes: dd08ebf ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: <[email protected]> # v6.8+
Signed-off-by: Niranjana Vishwanathapura <[email protected]>
Reviewed-by: Nirmoy Das <[email protected]>
Reviewed-by: Matthew Brost <[email protected]>
Signed-off-by: José Roberto de Souza <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 40672b7)
Signed-off-by: Thomas Hellström <[email protected]>

Author: nvishwa1

drivers/gpu/drm/xe/xe_guc_submit.c

@@ -1240,6 +1240,7 @@ 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);