diff options
| author | Andrey Smetanin <asmetanin@virtuozzo.com> | 2015-12-15 03:01:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-15 06:12:21 +0300 |
| commit | 17efbee8ba02ef00d3b270998978f8a1a90f1d92 (patch) | |
| tree | dac527eaf4e57207f1b5721115d5b44a71fa62a0 /drivers/hv/vmbus_drv.c | |
| parent | b00359642c2427da89dc8f77daa2c9e8a84e6d76 (diff) | |
| download | linux-17efbee8ba02ef00d3b270998978f8a1a90f1d92.tar.xz | |
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: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Vitaly 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: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv/vmbus_drv.c')
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index f19b6f7a467a..3297731017e4 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -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(); |