[PATCH v1] libnvdimm, namespace: Replace kmemdup() with kstrndup()

Andy Shevchenko
2018-06-11T13:47:24Z

kstrndup() takes care of '\0' terminator for the strings.

Use it here instead of kmemdup() + explicit terminating the input string.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/nvdimm/namespace_devs.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 28afdd668905..19525f025539 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -270,11 +270,10 @@ static ssize_t __alt_name_store(struct device *dev, const char *buf,
if (dev->driver || to_ndns(dev)->claim)
return -EBUSY;

- input = kmemdup(buf, len + 1, GFP_KERNEL);
+ input = kstrndup(buf, len, GFP_KERNEL);
if (!input)
return -ENOMEM;

- input[len] = '\0';
pos = strim(input);
if (strlen(pos) + 1 > NSLABEL_NAME_LEN) {
rc = -EINVAL;
--
2.17.1