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 <[e-mail]>
Signed-off-by: Samuel Ortiz <[e-mail]>

drivers/mfd/tps65912-core.c

···
 err:
 	kfree(init_data);
 	mfd_remove_devices(tps65912->dev);
-	kfree(tps65912);
 	return ret;
 }
 
···
 {
 	mfd_remove_devices(tps65912->dev);
 	tps65912_irq_exit(tps65912);
-	kfree(tps65912);
 }
 
 MODULE_AUTHOR("Margarita Olaya	<[e-mail]>");

drivers/mfd/tps65912-i2c.c

···
 {
 	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

···
 {
 	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;