Drivers: hv: check vmbus_device_create() return value in vmbus_process_offer()
vmbus_device_create() result is not being checked in vmbus_process_offer() and it can fail if kzalloc() fails. Add the check and do minor cleanup to avoid additional duplication of "free_channel(); return;" block. Reported-by: NJason Wang <jasowang@redhat.com> Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com> Acked-by: NJason Wang <jasowang@redhat.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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