In order to test that the name of a resource begins with "pmem", call strncmp() with 4 as length instead of 3 to match the whole prefix.
Fixes: 16660eaea0cc ("libnvdimm, namespace: update label implementation for multi-pmem") Signed-off-by: Nicolas Iooss <nicolas.iooss_li...@m4x.org> --- drivers/nvdimm/label.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index fac7cabe8f56..dd615345699f 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -938,7 +938,7 @@ int nd_pmem_namespace_label_update(struct nd_region *nd_region, } for_each_dpa_resource(ndd, res) - if (strncmp(res->name, "pmem", 3) == 0) + if (strncmp(res->name, "pmem", 4) == 0) count++; WARN_ON_ONCE(!count); -- 2.10.1