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virtio-gpu: fix memory leak in resource attach backing

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In the resource attach backing function, everytime it will
allocate 'res->iov' thus can leading a memory leak. This
patch avoid this.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Message-id: 1483003721-65360-1-git-send-email-liq3ea@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Li Qiang 2016-12-29 04:28:41 -05:00 committed by Gerd Hoffmann
parent 33243031da
commit 204f01b309
1 changed files with 5 additions and 0 deletions
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5
hw/display/virtio-gpu.c
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@ -714,6 +714,11 @@ virtio_gpu_resource_attach_backing(VirtIOGPU *g,
return;
}
if (res->iov) {
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
return;
}
ret = virtio_gpu_create_mapping_iov(&ab, cmd, &res->addrs, &res->iov);
if (ret != 0) {
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;