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Tue, 19 May 2026 08:22:09 +0000 Message-ID: <7e7d3966-313f-4d73-96ff-facb667b8836@amd.com> Date: Tue, 19 May 2026 10:22:02 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 09/12] drm/syncobj: fix resource leak in drm_syncobj_import_sync_file_fence To: Julian Orth , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , Jonathan Corbet , Shuah Khan , Arnd Bergmann , Greg Kroah-Hartman Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-doc@vger.kernel.org, wayland-devel@lists.freedesktop.org References: <20260516-jorth-syncobj-v1-0-88ede9d98a81@gmail.com> <20260516-jorth-syncobj-v1-9-88ede9d98a81@gmail.com> Content-Language: en-US From: =?UTF-8?Q?Christian_K=C3=B6nig?= In-Reply-To: <20260516-jorth-syncobj-v1-9-88ede9d98a81@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BN1PR10CA0012.namprd10.prod.outlook.com (2603:10b6:408:e0::17) To PH7PR12MB5685.namprd12.prod.outlook.com (2603:10b6:510:13c::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH7PR12MB5685:EE_|BY5PR12MB4195:EE_ X-MS-Office365-Filtering-Correlation-Id: d2935b3e-f06b-487a-3cb5-08deb57fb83d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Since it is a bug fix that patch should be send out separately from the patch set. > > Signed-off-by: Julian Orth > --- > drivers/gpu/drm/drm_syncobj.c | 17 +++++++++++------ > 1 file changed, 11 insertions(+), 6 deletions(-) > > diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c > index 9b7ecc2978f5..1da96e23dfc0 100644 > --- a/drivers/gpu/drm/drm_syncobj.c > +++ b/drivers/gpu/drm/drm_syncobj.c > @@ -767,30 +767,35 @@ static int drm_syncobj_import_sync_file_fence(struct drm_file *file_private, > { > struct dma_fence *fence = sync_file_get_fence(fd); > struct drm_syncobj *syncobj; > + int ret = 0; Please don't initialize local return variables, initialize them when you know that the function is successful. Regards, Christian. > > if (!fence) > return -EINVAL; > > syncobj = drm_syncobj_find(file_private, handle); > if (!syncobj) { > - dma_fence_put(fence); > - return -ENOENT; > + ret = -ENOENT; > + goto err_syncobj; > } > > if (point) { > struct dma_fence_chain *chain = dma_fence_chain_alloc(); > > - if (!chain) > - return -ENOMEM; > + if (!chain) { > + ret = -ENOMEM; > + goto err; > + } > > drm_syncobj_add_point(syncobj, chain, fence, point); > } else { > drm_syncobj_replace_fence(syncobj, fence); > } > > - dma_fence_put(fence); > +err: > drm_syncobj_put(syncobj); > - return 0; > +err_syncobj: > + dma_fence_put(fence); > + return ret; > } > > static int drm_syncobj_export_sync_file(struct drm_file *file_private, >