Osier Yang b8a0103d45 storage: Fix coverity warning
Introduced by commit e0139e30444:

1777 	    /* Updating pool metadata */

(40) Event var_deref_op: Dereferencing null pointer "newvol".
     Also see events: [assign_zero]

1778 	    pool->def->allocation += newvol->allocation;
1779 	    pool->def->available -= newvol->allocation;
2013-08-21 17:28:11 +08:00
..
2013-08-21 17:28:11 +08:00