ceph: add check for nil object status
ceph: add check for nil object status

in couple of unit testing the tests are
panicing with nil pointer exception,This
commit adds a check for status pointer before
operating on it.

Signed-off-by: Madhu Rajanna <60fbf37a92c2a0908e31296d18dadbec5a4dae17@gmail.com>

rook/rook,rook/rook,rook/rook,rook/rook,rook/rook,rook/nfs,rook/nfs,rook/nfs