diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c
index 062f2cf..87a886f 100644
--- a/drivers/pwm/pwm-samsung.c
+++ b/drivers/pwm/pwm-samsung.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2007 Ben Dooks
  * Copyright (c) 2008 Simtec Electronics
@@ -6,10 +7,6 @@
  * Copyright (c) 2017 Samsung Electronics Co., Ltd.
  *
  * PWM driver for Samsung SoCs
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
  */
 
 #include <linux/bitops.h>
@@ -226,7 +223,7 @@
 		return -EINVAL;
 	}
 
-	our_chan = devm_kzalloc(chip->dev, sizeof(*our_chan), GFP_KERNEL);
+	our_chan = kzalloc(sizeof(*our_chan), GFP_KERNEL);
 	if (!our_chan)
 		return -ENOMEM;
 
@@ -237,8 +234,7 @@
 
 static void pwm_samsung_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
-	devm_kfree(chip->dev, pwm_get_chip_data(pwm));
-	pwm_set_chip_data(pwm, NULL);
+	kfree(pwm_get_chip_data(pwm));
 }
 
 static int pwm_samsung_enable(struct pwm_chip *chip, struct pwm_device *pwm)