[PATCH AUTOSEL 6.1 17/34] drm/amdkfd: fix a potential double free in pqm_create_queue
From: Sasha Levin
Date: Wed Mar 22 2023 - 16:16:50 EST
From: Chia-I Wu <olvaffe@xxxxxxxxx>
[ Upstream commit b2ca5c5d416b4e72d1e9d0293fc720e2d525fd42 ]
Set *q to NULL on errors, otherwise pqm_create_queue would free it
again.
Signed-off-by: Chia-I Wu <olvaffe@xxxxxxxxx>
Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 5137476ec18e6..4236539d9f932 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -218,8 +218,8 @@ static int init_user_queue(struct process_queue_manager *pqm,
return 0;
cleanup:
- if (dev->shared_resources.enable_mes)
- uninit_queue(*q);
+ uninit_queue(*q);
+ *q = NULL;
return retval;
}
--
2.39.2