From: Chia-I Wu <olvaffe@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: "Felix Kuehling" <Felix.Kuehling@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"Pan, Xinhui" <Xinhui.Pan@amd.com>,
"David Airlie" <airlied@gmail.com>,
"Daniel Vetter" <daniel@ffwll.ch>,
amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH] drm/amdkfd: fix a potential double free in pqm_create_queue
Date: Tue, 7 Mar 2023 16:19:02 -0800 [thread overview]
Message-ID: <20230308001903.2841087-1-olvaffe@gmail.com> (raw)
Set *q to NULL on errors, otherwise pqm_create_queue would free it
again.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
---
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;
}
--
2.40.0.rc0.216.gc4246ad0f0-goog
next reply other threads:[~2023-03-08 0:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-08 0:19 Chia-I Wu [this message]
2023-03-08 17:42 ` [PATCH] drm/amdkfd: fix a potential double free in pqm_create_queue Felix Kuehling
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