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authorDexuan Cui <decui@microsoft.com>2015-02-27 11:25:58 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-03-01 19:30:07 -0800
commit1896566372579939eb86414ea3d664f18d5e909c (patch)
tree52e4b7aa7b4a7390bd041b671c4eee5e74e08289 /drivers/hv
parente086748c655ab99bac91b87d1bb59d9cc45867b9 (diff)
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>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hv_util.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index 3b9c9ef0deb8..c5be7737559f 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -340,12 +340,8 @@ static int util_probe(struct hv_device *dev,
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 @@ static int util_probe(struct hv_device *dev,
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: