kobject: Replace strncpy with memcpy

gcc 8.1.0 complains:

lib/kobject.c:128:3: warning:
	'strncpy' output truncated before terminating nul copying as many
	bytes from a string as its length [-Wstringop-truncation]
lib/kobject.c: In function 'kobject_get_path':
lib/kobject.c:125:13: note: length computed here

Using strncpy() is indeed less than perfect since the length of data to
be copied has already been determined with strlen(). Replace strncpy()
with memcpy() to address the warning and optimize the code a little.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/lib/kobject.c b/lib/kobject.c
index 18989b5b3b56b8b0b59836492606ec99fd3debbe..e876957743c8ce3d1874b8dee9ca28ab18bd341a 100644 (file)
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -125,7 +125,7 @@ static void fill_kobj_path(struct kobject *kobj, char *path, int length)
                int cur = strlen(kobject_name(parent));
                /* back up enough to print this name with '/' */
                length -= cur;
-               strncpy(path + length, kobject_name(parent), cur);
+               memcpy(path + length, kobject_name(parent), cur);
                *(path + --length) = '/';
        }