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X-Received-From: 2a00:1450:4864:20::32d X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Pan Nengyuan Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Pan Nengyuan This patch fix memleaks when attaching/detaching virtio-scsi device, the memory leak stack is as follow: Direct leak of 21504 byte(s) in 3 object(s) allocated from: #0 0x7f491f2f2970 (/lib64/libasan.so.5+0xef970) ??:? #1 0x7f491e94649d (/lib64/libglib-2.0.so.0+0x5249d) ??:? #2 0x564d0f3919fa (./x86_64-softmmu/qemu-system-x86_64+0x2c3e9fa) /mnt/s= db/qemu/hw/virtio/virtio.c:2333 #3 0x564d0f2eca55 (./x86_64-softmmu/qemu-system-x86_64+0x2b99a55) /mnt/s= db/qemu/hw/scsi/virtio-scsi.c:912 #4 0x564d0f2ece7b (./x86_64-softmmu/qemu-system-x86_64+0x2b99e7b) /mnt/s= db/qemu/hw/scsi/virtio-scsi.c:924 #5 0x564d0f39ee47 (./x86_64-softmmu/qemu-system-x86_64+0x2c4be47) /mnt/s= db/qemu/hw/virtio/virtio.c:3531 #6 0x564d0f980224 (./x86_64-softmmu/qemu-system-x86_64+0x322d224) /mnt/s= db/qemu/hw/core/qdev.c:865 Reported-by: Euler Robot Signed-off-by: Pan Nengyuan Reviewed-by: Stefan Hajnoczi Message-Id: <20200117075547.60864-2-pannengyuan@huawei.com> Signed-off-by: Paolo Bonzini --- hw/scsi/virtio-scsi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 4bc73a3..858b3aa 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -943,7 +943,13 @@ void virtio_scsi_common_unrealize(DeviceState *dev) { VirtIODevice *vdev =3D VIRTIO_DEVICE(dev); VirtIOSCSICommon *vs =3D VIRTIO_SCSI_COMMON(dev); + int i; =20 + virtio_del_queue(vdev, 0); + virtio_del_queue(vdev, 1); + for (i =3D 0; i < vs->conf.num_queues; i++) { + virtio_del_queue(vdev, i + 2); + } g_free(vs->cmd_vqs); virtio_cleanup(vdev); } --=20 1.8.3.1