6.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Niranjana Vishwanathapura <niranjana.vishwanathapura@xxxxxxxxx>
commit 6c5cd0807c79eb4c0cda70b48f6be668a241d584 upstream.
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@xxxxxxxxxxxxxxx> # v6.8+
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@xxxxxxxxx>
Reviewed-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
Reviewed-by: Matthew Brost <matthew.brost@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20240521201711.4934-1-niranjana.vishwanathapura@xxxxxxxxx
(cherry picked from commit 40672b792a36894aff3a337b695f6136ee6ac5d4)
Signed-off-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/xe/xe_guc_submit.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/xe/xe_guc_submit.c
+++ b/drivers/gpu/drm/xe/xe_guc_submit.c
@@ -1257,6 +1257,7 @@ static int guc_exec_queue_init(struct xe
return 0;
err_entity:
+ mutex_unlock(&guc->submission_state.lock);
xe_sched_entity_fini(&ge->entity);
err_sched:
xe_sched_fini(&ge->sched);
