hv: hv_util: move vmbus_open() to a later place
Before the line vmbus_open() returns, srv->util_cb can be already running
and the variables, like util_fw_version, are needed by the srv->util_cb.
So we have to make sure the variables are initialized before the vmbus_open().
CC: "K. Y. Srinivasan" <kys@microsoft.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index 3b9c9ef..c5be773 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -340,12 +340,8 @@
set_channel_read_state(dev->channel, false);
- ret = vmbus_open(dev->channel, 4 * PAGE_SIZE, 4 * PAGE_SIZE, NULL, 0,
- srv->util_cb, dev->channel);
- if (ret)
- goto error;
-
hv_set_drvdata(dev, srv);
+
/*
* Based on the host; initialize the framework and
* service version numbers we will negotiate.
@@ -365,6 +361,11 @@
hb_srv_version = HB_VERSION;
}
+ ret = vmbus_open(dev->channel, 4 * PAGE_SIZE, 4 * PAGE_SIZE, NULL, 0,
+ srv->util_cb, dev->channel);
+ if (ret)
+ goto error;
+
return 0;
error: