[libvirt] [PATCH 1/3] hyperv: Fix hypervInitConnection error reporting

[Ladi Prosek]

"%s is not a Hyper-V server" is not a correct generalization of all possible
error conditions of hypervEnumAndPull. For example:

  $ virsh --connect hyperv://localhost/?transport=http
  Enter username for localhost [administrator]:
  Enter administrator's password for localhost: <enters incorrect password>
  error: failed to connect to the hypervisor
  error: internal error: localhost is not a Hyper-V server

This commit fixes hypervEnumAndPull to set a meaningful internal error on all
error paths and removes the general virReportError.

The same scenario with the fix:

  $ virsh --connect hyperv://localhost/?transport=http
  Enter username for localhost [administrator]:
  Enter administrator's password for localhost: <enters incorrect password>
  error: failed to connect to the hypervisor
  error: internal error: Transport error during enumeration: User, password or
  similar was not accepted (26)

Signed-off-by: Ladi Prosek <lprosek at redhat.com>
---
 src/hyperv/hyperv_driver.c | 2 --
 src/hyperv/hyperv_wmi.c    | 1 +
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/hyperv/hyperv_driver.c b/src/hyperv/hyperv_driver.c
index 09912610c..52274239c 100644
--- a/src/hyperv/hyperv_driver.c
+++ b/src/hyperv/hyperv_driver.c
@@ -105,8 +105,6 @@ hypervInitConnection(virConnectPtr conn, hypervPrivate *priv,
         priv->wmiVersion = HYPERV_WMI_VERSION_V1;
 
         if (hypervEnumAndPull(priv, &wqlQuery, &computerSystem) < 0) {
-            virReportError(VIR_ERR_INTERNAL_ERROR,
-                           _("%s is not a Hyper-V server"), conn->uri->server);
             goto cleanup;
         }
     }
diff --git a/src/hyperv/hyperv_wmi.c b/src/hyperv/hyperv_wmi.c
index 980a00e28..6a51eff20 100644
--- a/src/hyperv/hyperv_wmi.c
+++ b/src/hyperv/hyperv_wmi.c
@@ -985,6 +985,7 @@ hypervEnumAndPull(hypervPrivate *priv, hypervWqlQueryPtr wqlQuery,
     hypervObject *object;
 
     if (virBufferCheckError(wqlQuery->query) < 0) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Invalid query"));
         virBufferFreeAndReset(wqlQuery->query);
         return -1;
     }
-- 
2.13.5