Re: [PATCH] ndctl: fix zero-labels to handle firmware error properly

ndctl zero-labels completes with a large number of zeroed nmems when it fails to do zeroing on a protected NVDIMM. # ndctl zero-labels nmem1 zeroed 65504 nmems do_cmd() called from ndctl_dimm_zero_labels() sets a transfer size to rc when FW status is non-zero. This transfer size gets mistreated as zeroed nmems count in the end. Fix ndctl_dimm_zero_labels() to handle this FW error case properly. Reported-by: Robert Elliott <elliott(a)hpe.com&gt; Signed-off-by: Toshi Kani <toshi.kani(a)hpe.com&gt; Cc: Vishal Verma <vishal.l.verma(a)intel.com&gt; Cc: Dan Williams <dan.j.williams(a)intel.com&gt;