From: 何鑫 <hexin.op@bytedance.com>
To: Daniel Vetter <daniel@ffwll.ch>,
airlied@linux.ie, kraxel@redhat.com,
Sumit Semwal <sumit.semwal@linaro.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
linux-media@vger.kernel.org, Qi Liu <liuqi.16@bytedance.com>,
Muchun Song <songmuchun@bytedance.com>,
gregkh@linuxfoundation.org
Subject: Re: [PATCH v3] drm/virtio: fix missing dma_fence_put() in virtio_gpu_execbuffer_ioctl()
Date: Fri, 7 Aug 2020 11:00:11 +0800 [thread overview]
Message-ID: <CACKzwj=obkJPmMb1cGKDwBdgkxa92kpPTP9c2SzFWbbzcD6Luw@mail.gmail.com> (raw)
In-Reply-To: <20200721101647.42653-1-hexin.op@bytedance.com>
Xin He <hexin.op@bytedance.com> 于2020年7月21日周二 下午6:17写道:
>
> From: Qi Liu <liuqi.16@bytedance.com>
>
> 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 <hexin.op@bytedance.com>
> Signed-off-by: Xin He <hexin.op@bytedance.com>
> Signed-off-by: Qi Liu <liuqi.16@bytedance.com>
> Reviewed-by: Muchun Song <songmuchun@bytedance.com>
> ---
>
> changelog in v3:
> 1) Change the subject from "drm/virtio: fixed memory leak in virtio_gpu_execbuffer_ioctl()" to
> "drm/virtio: fix missing dma_fence_put() in virtio_gpu_execbuffer_ioctl()"
> 2) Rework the commit log
>
> changelog in v2:
> 1) Add a change description
>
> drivers/gpu/drm/virtio/virtgpu_ioctl.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> index 5df722072ba0..19c5bc01eb79 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> @@ -179,6 +179,7 @@ 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;
>
> --
> 2.21.1 (Apple Git-122.3)
>
cc Greg
--
Xin He
next prev parent reply other threads:[~2020-08-07 3:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-21 10:16 [PATCH v3] drm/virtio: fix missing dma_fence_put() in virtio_gpu_execbuffer_ioctl() Xin He
2020-07-29 7:38 ` Muchun Song
2020-08-07 3:00 ` 何鑫 [this message]
2020-08-07 5:52 ` Greg KH
2020-08-07 11:57 ` Gerd Hoffmann
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