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virtio-gpu: fix memory leak in set scanout 

In virtio_gpu_set_scanout function, when creating the 'rect'
its refcount is set to 2, by pixman_image_create_bits and
qemu_create_displaysurface_pixman function. This can lead
a memory leak issues. This patch avoid this issue.

Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 5884626f.5b2f6b0a.1bfff.3037@mx.google.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Li Qiang 2017-01-21 23:42:33 -08:00 committed by Gerd Hoffmann
parent 33d076ebd0
commit dd248ed7e2
1 changed files with 1 additions and 0 deletions
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hw/display/virtio-gpu.c
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@ -608,6 +608,7 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
return;
}
pixman_image_unref(rect);
dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, scanout->ds);
}