diff --git a/drivers/platform/x86/lenovo/think-lmi.c b/drivers/platform/x86/lenovo/think-lmi.c
index ca266657e16c..a0e3fa766e37 100644
--- a/drivers/platform/x86/lenovo/think-lmi.c
+++ b/drivers/platform/x86/lenovo/think-lmi.c
@@ -438,14 +438,13 @@ static ssize_t current_password_store(struct kobject *kobj,
 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);
 	size_t pwdlen;
 
-	pwdlen = strlen(buf);
+	/* Strip newline; setting password won't work if one is present. */
+	pwdlen = strchrnul(buf, '\n') - buf;
 	/* pwdlen == 0 is allowed to clear the password */
 	if (pwdlen && ((pwdlen < setting->minlen) || (pwdlen > setting->maxlen)))
 		return -EINVAL;
 
-	strscpy(setting->password, buf, setting->maxlen);
-	/* Strip out CR if one is present, setting password won't work if it is present */
-	strreplace(setting->password, '\n', '\0');
+	strscpy(setting->password, buf, pwdlen + 1);
 	return count;
 }