[libvirt] [PATCH 17/24] maint: improve VIR_ERR_INVALID_STORAGE_VOL usage

[John Ferlan]

On 12/28/2013 11:11 AM, Eric Blake wrote:
> For storage volume validation, we weren't consistent on
> whether to use VIR_FROM_NONE or VIR_FROM_STORAGE.  Similar
> to previous patches, use a common macro to make it nicer.
> 
> virStorageVolCreateXMLFrom allows cross-connection cloning,
> where the error is reported against the connection of the
> destination pool.
> 
> * src/datatypes.h (virCheckStorageVolReturn)
> (virCheckStorageVolGoto): New macros.
> (VIR_IS_STORAGE_VOL, VIR_IS_CONNECTED_STORAGE_VOL): Drop
> unused macros.
> * src/libvirt.c: Use macro throughout.
> (virLibStorageVolError): Drop unused macro.
> 
> Signed-off-by: Eric Blake <eblake at redhat.com>
> ---
>  src/datatypes.h |  29 +++++++++++++--
>  src/libvirt.c   | 112 ++++++++++++--------------------------------------------
>  2 files changed, 49 insertions(+), 92 deletions(-)
> 

Same as previous w/r/t GetName and GetKey here.

ACK

John