Release mountLock before throwing "already mounted" exception.
Release mountLock before throwing "already mounted" exception.

vicky-katara/fuse-jna,vicky-katara/fuse-jna,vicky-katara/fuse-jna,EtiennePerot/fuse-jna,EtiennePerot/fuse-jna,EtiennePerot/fuse-jna