rtc: rtc-ds1390: use devm_*() functions

Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 10 deletions

diff --git a/drivers/rtc/rtc-ds1390.c b/drivers/rtc/rtc-ds1390.c
index 11b70763bb53..289af419dff4 100644
--- a/drivers/rtc/rtc-ds1390.c
+++ b/drivers/rtc/rtc-ds1390.c
@@ -131,7 +131,7 @@ static int ds1390_probe(struct spi_device *spi)
         spi->bits_per_word = 8;
         spi_setup(spi);
 
-        chip = kzalloc(sizeof *chip, GFP_KERNEL);
+        chip = devm_kzalloc(&spi->dev, sizeof(*chip), GFP_KERNEL);
         if (!chip) {
                 dev_err(&spi->dev, "unable to allocate device memory\n");
                 return -ENOMEM;
@@ -141,16 +141,14 @@ static int ds1390_probe(struct spi_device *spi)
         res = ds1390_get_reg(&spi->dev, DS1390_REG_SECONDS, &tmp);
         if (res != 0) {
                 dev_err(&spi->dev, "unable to read device\n");
-                kfree(chip);
                 return res;
         }
 
-        chip->rtc = rtc_device_register("ds1390",
-                                &spi->dev, &ds1390_rtc_ops, THIS_MODULE);
+        chip->rtc = devm_rtc_device_register(&spi->dev, "ds1390",
+                                        &ds1390_rtc_ops, THIS_MODULE);
         if (IS_ERR(chip->rtc)) {
                 dev_err(&spi->dev, "unable to register device\n");
                 res = PTR_ERR(chip->rtc);
-                kfree(chip);
         }
 
         return res;
@@ -158,11 +156,6 @@ static int ds1390_probe(struct spi_device *spi)
 
 static int ds1390_remove(struct spi_device *spi)
 {
-        struct ds1390 *chip = spi_get_drvdata(spi);
-
-        rtc_device_unregister(chip->rtc);
-        kfree(chip);
-
         return 0;
 }