hwmon: (ads7871) Convert to use devm_ functions

Convert to use devm_ functions to reduce code size and simplify the code.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 7 insertions, 14 deletions

diff --git a/drivers/hwmon/ads7871.c b/drivers/hwmon/ads7871.c
index 7bf4ce3d405e..1b53aa42b6db 100644
--- a/drivers/hwmon/ads7871.c
+++ b/drivers/hwmon/ads7871.c
@@ -198,20 +198,17 @@ static int __devinit ads7871_probe(struct spi_device *spi)
          * because there is no other error checking on an SPI bus
          * we need to make sure we really have a chip
          */
-        if (val != ret) {
-                err = -ENODEV;
-                goto exit;
-        }
+        if (val != ret)
+                return -ENODEV;
 
-        pdata = kzalloc(sizeof(struct ads7871_data), GFP_KERNEL);
-        if (!pdata) {
-                err = -ENOMEM;
-                goto exit;
-        }
+        pdata = devm_kzalloc(&spi->dev, sizeof(struct ads7871_data),
+                             GFP_KERNEL);
+        if (!pdata)
+                return -ENOMEM;
 
         err = sysfs_create_group(&spi->dev.kobj, &ads7871_group);
         if (err < 0)
-                goto error_free;
+                return err;
 
         spi_set_drvdata(spi, pdata);
 
@@ -225,9 +222,6 @@ static int __devinit ads7871_probe(struct spi_device *spi)
 
 error_remove:
         sysfs_remove_group(&spi->dev.kobj, &ads7871_group);
-error_free:
-        kfree(pdata);
-exit:
         return err;
 }
 
@@ -237,7 +231,6 @@ static int __devexit ads7871_remove(struct spi_device *spi)
 
         hwmon_device_unregister(pdata->hwmon_dev);
         sysfs_remove_group(&spi->dev.kobj, &ads7871_group);
-        kfree(pdata);
         return 0;
 }