Re: [PATCH] drm/amdkfd: fix a potential double free in pqm_create_queue

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On 2023-03-07 19:19, Chia-I Wu wrote:
Set *q to NULL on errors, otherwise pqm_create_queue would free it
again.

Signed-off-by: Chia-I Wu <olvaffe@xxxxxxxxx>

Thank you! I'm applying this patch to amd-staging-drm-next.

Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>


---
  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;
  }



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