afr: fix inode ref leak in lookup
afr: fix inode ref leak in lookup

first success lookup sets local->cont.lookup with inode_ref and second
setting leaks

Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 813 (inode ref leak)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=813

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster