int driver_deferred_probe_check_state(struct device *dev)
 {
        if (!IS_ENABLED(CONFIG_MODULES) && initcalls_done) {
-               dev_warn(dev, "ignoring dependency for device, assuming no driver");
+               dev_warn(dev, "ignoring dependency for device, assuming no driver\n");
                return -ENODEV;
        }
 
        if (!driver_deferred_probe_timeout) {
-               dev_WARN(dev, "deferred probe timeout, ignoring dependency");
+               dev_WARN(dev, "deferred probe timeout, ignoring dependency\n");
                return -ETIMEDOUT;
        }
 
        flush_work(&deferred_probe_work);
 
        list_for_each_entry_safe(private, p, &deferred_probe_pending_list, deferred_probe)
-               dev_info(private->device, "deferred probe pending");
+               dev_info(private->device, "deferred probe pending\n");
 }
 static DECLARE_DELAYED_WORK(deferred_probe_timeout_work, deferred_probe_timeout_work_func);
 
 static void driver_bound(struct device *dev)
 {
        if (device_is_bound(dev)) {
-               printk(KERN_WARNING "%s: device %s already bound\n",
+               pr_warn("%s: device %s already bound\n",
                        __func__, kobject_name(&dev->kobj));
                return;
        }
        }
 
        if (driver_sysfs_add(dev)) {
-               printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
-                       __func__, dev_name(dev));
+               pr_err("%s: driver_sysfs_add(%s) failed\n",
+                      __func__, dev_name(dev));
                goto probe_failed;
        }
 
                break;
        default:
                /* driver matched but the probe failed */
-               printk(KERN_WARNING
-                      "%s: probe of %s failed with error %d\n",
-                      drv->name, dev_name(dev), ret);
+               pr_warn("%s: probe of %s failed with error %d\n",
+                       drv->name, dev_name(dev), ret);
        }
        /*
         * Ignore errors returned by ->probe so that the next driver can try
        ret = really_probe(dev, drv);
        rettime = ktime_get();
        delta = ktime_sub(rettime, calltime);
-       printk(KERN_DEBUG "probe of %s returned %d after %lld usecs\n",
-              dev_name(dev), ret, (s64) ktime_to_us(delta));
+       pr_debug("probe of %s returned %d after %lld usecs\n",
+                dev_name(dev), ret, (s64) ktime_to_us(delta));
        return ret;
 }
 
 static int __init save_async_options(char *buf)
 {
        if (strlen(buf) >= ASYNC_DRV_NAMES_MAX_LEN)
-               printk(KERN_WARNING
-                       "Too long list of driver names for 'driver_async_probe'!\n");
+               pr_warn("Too long list of driver names for 'driver_async_probe'!\n");
 
        strlcpy(async_probe_drv_names, buf, ASYNC_DRV_NAMES_MAX_LEN);
        return 0;
                dev_dbg(dev, "Device match requests probe deferral\n");
                driver_deferred_probe_add(dev);
        } else if (ret < 0) {
-               dev_dbg(dev, "Bus failed to match device: %d", ret);
+               dev_dbg(dev, "Bus failed to match device: %d\n", ret);
                return ret;
        } /* ret > 0 means positive match */
 
                dev_dbg(dev, "Device match requests probe deferral\n");
                driver_deferred_probe_add(dev);
        } else if (ret < 0) {
-               dev_dbg(dev, "Bus failed to match device: %d", ret);
+               dev_dbg(dev, "Bus failed to match device: %d\n", ret);
                return ret;
        } /* ret > 0 means positive match */