rtc: rtc-pcf2123: 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, 8 deletions

diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index 02b742afa761..6a3f329c3df4 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -226,7 +226,8 @@ static int pcf2123_probe(struct spi_device *spi)
         u8 txbuf[2], rxbuf[2];
         int ret, i;
 
-        pdata = kzalloc(sizeof(struct pcf2123_plat_data), GFP_KERNEL);
+        pdata = devm_kzalloc(&spi->dev, sizeof(struct pcf2123_plat_data),
+                                GFP_KERNEL);
         if (!pdata)
                 return -ENOMEM;
         spi->dev.platform_data = pdata;
@@ -281,7 +282,7 @@ static int pcf2123_probe(struct spi_device *spi)
         pcf2123_delay_trec();
 
         /* Finalize the initialization */
-        rtc = rtc_device_register(pcf2123_driver.driver.name, &spi->dev,
+        rtc = devm_rtc_device_register(&spi->dev, pcf2123_driver.driver.name,
                         &pcf2123_rtc_ops, THIS_MODULE);
 
         if (IS_ERR(rtc)) {
@@ -314,7 +315,6 @@ sysfs_exit:
                 device_remove_file(&spi->dev, &pdata->regs[i].attr);
 
 kfree_exit:
-        kfree(pdata);
         spi->dev.platform_data = NULL;
         return ret;
 }
@@ -325,15 +325,10 @@ static int pcf2123_remove(struct spi_device *spi)
         int i;
 
         if (pdata) {
-                struct rtc_device *rtc = pdata->rtc;
-
-                if (rtc)
-                        rtc_device_unregister(rtc);
                 for (i = 0; i < 16; i++)
                         if (pdata->regs[i].name[0])
                                 device_remove_file(&spi->dev,
                                                    &pdata->regs[i].attr);
-                kfree(pdata);
         }
 
         return 0;