mfd: tps65912: Convert to managed resources for allocating memory

Saves on code and simplifies the driver, as these resources are now
tracked and freed automatically when the driver is realised.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/tps65912-core.c

@@ -162,7 +162,6 @@ int tps65912_device_init(struct tps65912 *tps65912)
 err:
 	kfree(init_data);
 	mfd_remove_devices(tps65912->dev);
-	kfree(tps65912);
 	return ret;
 }
 
@@ -170,7 +169,6 @@ void tps65912_device_exit(struct tps65912 *tps65912)
 {
 	mfd_remove_devices(tps65912->dev);
 	tps65912_irq_exit(tps65912);
-	kfree(tps65912);
 }
 
 MODULE_AUTHOR("Margarita Olaya	<magi@slimlogic.co.uk>");

drivers/mfd/tps65912-i2c.c

@@ -77,7 +77,8 @@ static int tps65912_i2c_probe(struct i2c_client *i2c,
 {
 	struct tps65912 *tps65912;
 
-	tps65912 = kzalloc(sizeof(struct tps65912), GFP_KERNEL);
+	tps65912 = devm_kzalloc(&i2c->dev,
+				sizeof(struct tps65912), GFP_KERNEL);
 	if (tps65912 == NULL)
 		return -ENOMEM;
 

drivers/mfd/tps65912-spi.c

@@ -85,7 +85,8 @@ static int tps65912_spi_probe(struct spi_device *spi)
 {
 	struct tps65912 *tps65912;
 
-	tps65912 = kzalloc(sizeof(struct tps65912), GFP_KERNEL);
+	tps65912 = devm_kzalloc(&spi->dev,
+				sizeof(struct tps65912), GFP_KERNEL);
 	if (tps65912 == NULL)
 		return -ENOMEM;