linux-kernel - [PATCH AUTOSEL 5.4 25/28] virtio-blk: Fix memory leak among suspend/resume procedure

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Message-Id: <20210710235107.3221840-25-sashal@kernel.org>
Date:   Sat, 10 Jul 2021 19:51:04 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Xie Yongji <xieyongji@...edance.com>,
        Jason Wang <jasowang@...hat.com>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        Sasha Levin <sashal@...nel.org>,
        virtualization@...ts.linux-foundation.org,
        linux-block@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 25/28] virtio-blk: Fix memory leak among suspend/resume procedure

From: Xie Yongji <xieyongji@...edance.com>

[ Upstream commit b71ba22e7c6c6b279c66f53ee7818709774efa1f ]

The vblk->vqs should be freed before we call init_vqs()
in virtblk_restore().

Signed-off-by: Xie Yongji <xieyongji@...edance.com>
Link: https://lore.kernel.org/r/20210517084332.280-1-xieyongji@bytedance.com
Acked-by: Jason Wang <jasowang@...hat.com>
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/block/virtio_blk.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 2eeb2bcb488d..816eb2db7308 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -1057,6 +1057,8 @@ static int virtblk_freeze(struct virtio_device *vdev)
 	blk_mq_quiesce_queue(vblk->disk->queue);
 
 	vdev->config->del_vqs(vdev);
+	kfree(vblk->vqs);
+
 	return 0;
 }
 
-- 
2.30.2