cleanup: address govet warnings
cleanup: address govet warnings

We had "ns" as a parameter and then trying to
declare it also as a local variable, which is what
the complaint about "shadowing" refers to.

Issue reported:
shadow: declaration of "ns" shadows declaration at line 57 (govet)

Signed-off-by: Yug <0bdbd163d0c315ea6160e8172ff8eceaf795a460@gmail.com>

ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi