[libvirt] [PATCH] libxl: report correct errno from virNetSocketNewConnectTCP on migration

[Jim Fehlig]

On 09/03/2015 10:26 AM, Jim Fehlig wrote:
>
> Agreed. How about the following patch?

> >From a30c493bd9e20c9a7a423789a202c444a5eba344 Mon Sep 17 00:00:00 2001
> From: Jim Fehlig<jfehlig at suse.com>
> Date: Thu, 3 Sep 2015 10:14:20 -0600
> Subject: [PATCH] libxl: don't overwrite error from virNetSocketNewConnectTCP()
>
> Remove redundant error reporting libxlDomainMigrationPerform().
> virNetSocketNewConnectTCP() is perfectly capable of reporting
> sensible errors.
>
> Signed-off-by: Jim Fehlig<jfehlig at suse.com>
> ---
>   src/libxl/libxl_migration.c | 6 +-----
>   1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c
> index 9609e06..de2de91 100644
> --- a/src/libxl/libxl_migration.c
> +++ b/src/libxl/libxl_migration.c
> @@ -487,12 +487,8 @@ libxlDomainMigrationPerform(libxlDriverPrivatePtr driver,
>       /* socket connect to dst host:port */
>       if (virNetSocketNewConnectTCP(hostname, portstr,
>                                     AF_UNSPEC,
> -                                  &sock) < 0) {
> -        virReportSystemError(saved_errno,
> -                             _("unable to connect to '%s:%s'"),
> -                             hostname, portstr);
> +                                  &sock) < 0)
>           goto cleanup;
> -    }

I should try compiling before sending patches:

libxl/libxl_migration.c:475:9: error: unused variable 'saved_errno' 
[-Werror=unused-variable]
      int saved_errno = EINVAL;

I posted a working V2:

https://www.redhat.com/archives/libvir-list/2015-September/msg00107.html

Regards,
Jim