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SubjectRe: [PATCH net] hvsock: fix epollout hang from race condition
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This adds lots of new warnings:

net/vmw_vsock/hyperv_transport.c: In function ‘hvs_probe’:
net/vmw_vsock/hyperv_transport.c:205:20: warning: ‘vnew’ may be used uninitialized in this function [-Wmaybe-uninitialized]
remote->svm_port = host_ephemeral_port++;
~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
net/vmw_vsock/hyperv_transport.c:332:21: note: ‘vnew’ was declared here
struct vsock_sock *vnew;
^~~~
net/vmw_vsock/hyperv_transport.c:406:22: warning: ‘hvs_new’ may be used uninitialized in this function [-Wmaybe-uninitialized]
hvs_new->vm_srv_id = *if_type;
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
net/vmw_vsock/hyperv_transport.c:333:23: note: ‘hvs_new’ was declared here
struct hvsock *hvs, *hvs_new;
^~~~~~~
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