nvdimm: use the right length of "pmem"

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.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c
index fac7cabe8f563e8e0e08b97f79aeb4f86174f66f..dd615345699fddf38f9117344278bf9364afe547 100644 (file)
--- 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);