avl.c:647:2: warning: ‘where’ may be used uninitialized in this function [-Wmaybe-uninitialized]

[kernelOfTruth]

avl.c:647:2: warning: ‘where’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  avl_insert(tree, new_node, where);
  ^

[kernelOfTruth]

https://github.com/kernelOfTruth/zfs/tree/zfs_master_18.07.2015_issue-3609

kernelOfTruth@647aa37

will take a look later if anything else is needed beside this

[behlendorf]

Resolved by 273ff9b.