libnvdimm/namespace: Clean up holder_class_store()

Use sysfs_streq() in place of open-coded strcmp()'s that check for an
optional "\n" at the end of the input.

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 3677b0c4a33d..17fb7f931f0c 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1506,13 +1506,13 @@ static ssize_t __holder_class_store(struct device *dev, const char *buf)
         if (dev->driver || ndns->claim)
                 return -EBUSY;
 
-        if (strcmp(buf, "btt") == 0 || strcmp(buf, "btt\n") == 0)
+        if (sysfs_streq(buf, "btt"))
                 ndns->claim_class = btt_claim_class(dev);
-        else if (strcmp(buf, "pfn") == 0 || strcmp(buf, "pfn\n") == 0)
+        else if (sysfs_streq(buf, "pfn"))
                 ndns->claim_class = NVDIMM_CCLASS_PFN;
-        else if (strcmp(buf, "dax") == 0 || strcmp(buf, "dax\n") == 0)
+        else if (sysfs_streq(buf, "dax"))
                 ndns->claim_class = NVDIMM_CCLASS_DAX;
-        else if (strcmp(buf, "") == 0 || strcmp(buf, "\n") == 0)
+        else if (sysfs_streq(buf, ""))
                 ndns->claim_class = NVDIMM_CCLASS_NONE;
         else
                 return -EINVAL;