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[87.106.117.14]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48feb00e5easm36399545e9.13.2026.05.16.04.06.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 May 2026 04:06:55 -0700 (PDT) From: Julian Orth Date: Sat, 16 May 2026 13:06:12 +0200 Subject: [PATCH 09/12] drm/syncobj: fix resource leak in drm_syncobj_import_sync_file_fence Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260516-jorth-syncobj-v1-9-88ede9d98a81@gmail.com> References: <20260516-jorth-syncobj-v1-0-88ede9d98a81@gmail.com> In-Reply-To: <20260516-jorth-syncobj-v1-0-88ede9d98a81@gmail.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , 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, ju.orth@gmail.com X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1778929602; l=1383; i=ju.orth@gmail.com; s=20251120; h=from:subject:message-id; bh=5APNMtl2NCstrrwoxtWKTvFVItf0IqBmltZkdCTjBxU=; b=uBiahrAmREDZy7Fj07y8SVauSH9GmZFa2clMwUB1MLOYdGIifgpx+NgONorTf5/6Z4hk84rCI KXcKOq9bDW9D2GMf5/UEmHT+/8WQoDxsc8BjwHF2qniEf5cY8txk1A8 X-Developer-Key: i=ju.orth@gmail.com; a=ed25519; pk=uM2SS4lelkuIoYHc7v9N9bgBZ3hS632zJS2xjRJLPLI= Previously, if dma_fence_chain_alloc() failed, the syncobj and fence would be leaked. 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; 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, -- 2.54.0