We're essentially just doing an open-coded kstrndup(). The only
differences are with what happens after the first '\0' character, but
request_firmware() doesn't care about that.
Suggested-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>
Signed-off-by: NShuah Khan <shuahkh@osg.samsung.com>