Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c
index 2d502fc..4420fbf 100644
--- a/drivers/rtc/rtc-ds1305.c
+++ b/drivers/rtc/rtc-ds1305.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * rtc-ds1305.c -- driver for DS1305 and DS1306 SPI RTC chips
  *
  * Copyright (C) 2008 David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -694,19 +690,16 @@
 
 	/* register RTC ... from here on, ds1305->ctrl needs locking */
 	ds1305->rtc = devm_rtc_allocate_device(&spi->dev);
-	if (IS_ERR(ds1305->rtc)) {
+	if (IS_ERR(ds1305->rtc))
 		return PTR_ERR(ds1305->rtc);
-	}
 
 	ds1305->rtc->ops = &ds1305_ops;
 
 	ds1305_nvmem_cfg.priv = ds1305;
 	ds1305->rtc->nvram_old_abi = true;
 	status = rtc_register_device(ds1305->rtc);
-	if (status) {
-		dev_dbg(&spi->dev, "register rtc --> %d\n", status);
+	if (status)
 		return status;
-	}
 
 	rtc_nvmem_register(ds1305->rtc, &ds1305_nvmem_cfg);