From: Qi Liu Date: Tue, 21 Jul 2020 10:16:47 +0000 (+0800) Subject: drm/virtio: fix missing dma_fence_put() in virtio_gpu_execbuffer_ioctl() X-Git-Tag: v5.7.18~68 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cad79cf4ede41606f845567db469655185c392f4;p=thirdparty%2Fkernel%2Fstable.git drm/virtio: fix missing dma_fence_put() in virtio_gpu_execbuffer_ioctl() [ Upstream commit 8b6ec999b198b59ae61e86e70f5e9df73fe4754f ] We should put the reference count of the fence after calling virtio_gpu_cmd_submit(). So add the missing dma_fence_put(). Fixes: 2cd7b6f08bc4 ("drm/virtio: add in/out fence support for explicit synchronization") Co-developed-by: Xin He Signed-off-by: Xin He Signed-off-by: Qi Liu Reviewed-by: Muchun Song Link: http://patchwork.freedesktop.org/patch/msgid/20200721101647.42653-1-hexin.op@bytedance.com Signed-off-by: Gerd Hoffmann Signed-off-by: Sasha Levin --- diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index 512daff920387..1fc3fa00685d0 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -180,6 +180,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, virtio_gpu_cmd_submit(vgdev, buf, exbuf->size, vfpriv->ctx_id, buflist, out_fence); + dma_fence_put(&out_fence->f); virtio_gpu_notify(vgdev); return 0;