iio: buffer: drop devm_iio_hw_consumer_free() API call

It's unused so far, so it can be removed. Also makes sense to remove it
to discourage weird uses of this call during review.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/buffer/industrialio-hw-consumer.c

@@ -142,17 +142,6 @@ static void devm_iio_hw_consumer_release(struct device *dev, void *res)
 	iio_hw_consumer_free(*(struct iio_hw_consumer **)res);
 }
 
-static int devm_iio_hw_consumer_match(struct device *dev, void *res, void *data)
-{
-	struct iio_hw_consumer **r = res;
-
-	if (!r || !*r) {
-		WARN_ON(!r || !*r);
-		return 0;
-	}
-	return *r == data;
-}
-
 /**
  * devm_iio_hw_consumer_alloc - Resource-managed iio_hw_consumer_alloc()
  * @dev: Pointer to consumer device.
@@ -160,9 +149,6 @@ static int devm_iio_hw_consumer_match(struct device *dev, void *res, void *data)
  * Managed iio_hw_consumer_alloc. iio_hw_consumer allocated with this function
  * is automatically freed on driver detach.
  *
- * If an iio_hw_consumer allocated with this function needs to be freed
- * separately, devm_iio_hw_consumer_free() must be used.
- *
  * returns pointer to allocated iio_hw_consumer on success, NULL on failure.
  */
 struct iio_hw_consumer *devm_iio_hw_consumer_alloc(struct device *dev)
@@ -186,23 +172,6 @@ struct iio_hw_consumer *devm_iio_hw_consumer_alloc(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(devm_iio_hw_consumer_alloc);
 
-/**
- * devm_iio_hw_consumer_free - Resource-managed iio_hw_consumer_free()
- * @dev: Pointer to consumer device.
- * @hwc: iio_hw_consumer to free.
- *
- * Free iio_hw_consumer allocated with devm_iio_hw_consumer_alloc().
- */
-void devm_iio_hw_consumer_free(struct device *dev, struct iio_hw_consumer *hwc)
-{
-	int rc;
-
-	rc = devres_release(dev, devm_iio_hw_consumer_release,
-			    devm_iio_hw_consumer_match, hwc);
-	WARN_ON(rc);
-}
-EXPORT_SYMBOL_GPL(devm_iio_hw_consumer_free);
-
 /**
  * iio_hw_consumer_enable() - Enable IIO hardware consumer
  * @hwc: iio_hw_consumer to enable.

include/linux/iio/hw-consumer.h

@@ -14,7 +14,6 @@ struct iio_hw_consumer;
 struct iio_hw_consumer *iio_hw_consumer_alloc(struct device *dev);
 void iio_hw_consumer_free(struct iio_hw_consumer *hwc);
 struct iio_hw_consumer *devm_iio_hw_consumer_alloc(struct device *dev);
-void devm_iio_hw_consumer_free(struct device *dev, struct iio_hw_consumer *hwc);
 int iio_hw_consumer_enable(struct iio_hw_consumer *hwc);
 void iio_hw_consumer_disable(struct iio_hw_consumer *hwc);