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libnvdimm, namespace: Replace kmemdup() with kstrndup()

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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>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Andy Shevchenko 2018-06-11 16:47:21 +03:00 committed by Dan Williams
parent 9065ed1281
commit 3d9cbe37c1
1 changed files with 1 additions and 2 deletions
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3
drivers/nvdimm/namespace_devs.c
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@ -270,11 +270,10 @@ static ssize_t __alt_name_store(struct device *dev, const char *buf,
if (dev->driver || to_ndns(dev)->claim) if (dev->driver || to_ndns(dev)->claim)
return -EBUSY; return -EBUSY;
input = kmemdup(buf, len + 1, GFP_KERNEL); input = kstrndup(buf, len, GFP_KERNEL);
if (!input) if (!input)
return -ENOMEM; return -ENOMEM;
input[len] = '\0';
pos = strim(input); pos = strim(input);
if (strlen(pos) + 1 > NSLABEL_NAME_LEN) { if (strlen(pos) + 1 > NSLABEL_NAME_LEN) {
rc = -EINVAL; rc = -EINVAL;