Re: [PATCH v2 1/3] hyperv: Fix hypervInitConnection error reporting

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On 10/06/2017 02:47 AM, Ladi Prosek wrote:
> "%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 removes the general virReportError from hypervInitConnection and
> also the "Invalid query" virReportError from hypervSerializeEprParam, which
> does not correctly describe the error either (virBufferCheckError has
> already set a meaningful error message at that point).
> 
> 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@xxxxxxxxxx>
> ---
>  src/hyperv/hyperv_driver.c | 2 --
>  src/hyperv/hyperv_wmi.c    | 1 -
>  2 files changed, 3 deletions(-)
> 

Seems reasonable -
> 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;
>          }

Before posting be sure to "make check syntax-check" which would have
told you that since there's only one line (cleanup;) in the condition
that the { } are not necessary.

I've removed them locally before pushing...

Reviewed-by: John Ferlan <jferlan@xxxxxxxxxx>


John
>      }
> diff --git a/src/hyperv/hyperv_wmi.c b/src/hyperv/hyperv_wmi.c
> index 980a00e28..0b9431bfa 100644
> --- a/src/hyperv/hyperv_wmi.c
> +++ b/src/hyperv/hyperv_wmi.c
> @@ -514,7 +514,6 @@ hypervSerializeEprParam(hypervParamPtr p, hypervPrivate *priv,
>      /* Get query and create filter based on it */
>      if (virBufferCheckError(p->epr.query) < 0) {
>          virBufferFreeAndReset(p->epr.query);
> -        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Invalid query"));
>          goto cleanup;
>      }
>      query_string = virBufferContentAndReset(p->epr.query);
> 

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