Commit 17efbee8 authored by Andrey Smetanin's avatar Andrey Smetanin Committed by Greg Kroah-Hartman

drivers/hv: cleanup synic msrs if vmbus connect failed

Before vmbus_connect() synic is setup per vcpu - this means
hypervisor receives writes at synic msr's and probably allocate
hypervisor resources per synic setup.

If vmbus_connect() failed for some reason it's neccessary to cleanup
synic setup by call hv_synic_cleanup() at each vcpu to get a chance
to free allocated resources by hypervisor per synic.

This patch does appropriate cleanup in case of vmbus_connect() failure.
Signed-off-by: default avatarAndrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: default avatarDenis V. Lunev <den@openvz.org>
Reviewed-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
CC: "K. Y. Srinivasan" <kys@microsoft.com>
CC: Haiyang Zhang <haiyangz@microsoft.com>
CC: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b0035964
......@@ -867,7 +867,7 @@ static int vmbus_bus_init(int irq)
on_each_cpu(hv_synic_init, NULL, 1);
ret = vmbus_connect();
if (ret)
goto err_alloc;
goto err_connect;
if (vmbus_proto_version > VERSION_WIN7)
cpu_hotplug_disable();
......@@ -885,6 +885,8 @@ static int vmbus_bus_init(int irq)
return 0;
err_connect:
on_each_cpu(hv_synic_cleanup, NULL, 1);
err_alloc:
hv_synic_free();
hv_remove_vmbus_irq();
......
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