Raise VolumeNotFound with correct volume_id

Make sure VolumeNotFound is raised with the correct volume_id
in the SolidFire driver. Some exceptions were wrongfully referring
to an undefined variable named uuid.

Fixes: bug #1182966
Change-Id: Ied101fc9778f51dfb74b39f466c2c13d6e775a40

cinder/volume/drivers/solidfire.py

@@ -298,7 +298,7 @@ def _get_model_info(self, sfaccount, sf_volume_id):
         if not found_volume:
             LOG.error(_('Failed to retrieve volume SolidFire-'
                         'ID: %s in get_by_account!') % sf_volume_id)
-            raise exception.VolumeNotFound(volume_id=uuid)
+            raise exception.VolumeNotFound(volume_id=sf_volume_id)
 
         model_update = {}
         # NOTE(john-griffith): SF volumes are always at lun 0
@@ -327,7 +327,7 @@ def _do_clone_volume(self, src_uuid, src_project_id, v_ref):
 
         sf_vol = self._get_sf_volume(src_uuid, params)
         if sf_vol is None:
-            raise exception.VolumeNotFound(volume_id=uuid)
+            raise exception.VolumeNotFound(volume_id=src_uuid)
 
         if src_project_id != v_ref['project_id']:
             sfaccount = self._create_sfaccount(v_ref['project_id'])