net: clean up network at qemu process termination
We don't clean up network if fails to parse "-device" parameters without calling net_cleanup(). I touch a problem, the tap device which is created by qemu-ifup script could not be removed by qemu-ifdown script. Some similar problems also exist in vl.c In this patch, if network initialization successes, a cleanup function will be registered to be called at qemu process termination. Signed-off-by: Amos Kong <akong@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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vl.c
4
vl.c
@ -3762,6 +3762,9 @@ int main(int argc, char **argv, char **envp)
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}
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configure_icount(icount_option);
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/* clean up network at qemu process termination */
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atexit(&net_cleanup);
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if (net_init_clients() < 0) {
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exit(1);
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}
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@ -4014,7 +4017,6 @@ int main(int argc, char **argv, char **envp)
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main_loop();
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bdrv_close_all();
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pause_all_vcpus();
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net_cleanup();
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res_free();
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return 0;
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