[PATCH 3/8] iio: core: drop devm_iio_device_free() API call

[Alexandru Ardelean <alexandru.ardelean@analog.com>]

It's unused so far, so it can't be removed. Also makes sense to remove it
to discourage weird uses of this call during review.

This is the last user of 'devm_iio_device_match()', so it can be removed as
well in this patch.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
 .../driver-api/driver-model/devres.rst        |  1 -
 drivers/iio/industrialio-core.c               | 31 -------------------
 include/linux/iio/iio.h                       |  2 --
 3 files changed, 34 deletions(-)

diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 1431d5e44abc..6ae6c67dfec0 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -284,7 +284,6 @@ I2C
 
 IIO
   devm_iio_device_alloc()
-  devm_iio_device_free()
   devm_iio_device_register()
   devm_iio_kfifo_allocate()
   devm_iio_kfifo_free()
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index e4011f8431f9..ebe338a0494f 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1539,17 +1539,6 @@ static void devm_iio_device_release(struct device *dev, void *res)
 	iio_device_free(*(struct iio_dev **)res);
 }
 
-int devm_iio_device_match(struct device *dev, void *res, void *data)
-{
-	struct iio_dev **r = res;
-	if (!r || !*r) {
-		WARN_ON(!r || !*r);
-		return 0;
-	}
-	return *r == data;
-}
-EXPORT_SYMBOL_GPL(devm_iio_device_match);
-
 /**
  * devm_iio_device_alloc - Resource-managed iio_device_alloc()
  * @dev:		Device to allocate iio_dev for
@@ -1558,9 +1547,6 @@ EXPORT_SYMBOL_GPL(devm_iio_device_match);
  * Managed iio_device_alloc. iio_dev allocated with this function is
  * automatically freed on driver detach.
  *
- * If an iio_dev allocated with this function needs to be freed separately,
- * devm_iio_device_free() must be used.
- *
  * RETURNS:
  * Pointer to allocated iio_dev on success, NULL on failure.
  */
@@ -1585,23 +1571,6 @@ struct iio_dev *devm_iio_device_alloc(struct device *dev, int sizeof_priv)
 }
 EXPORT_SYMBOL_GPL(devm_iio_device_alloc);
 
-/**
- * devm_iio_device_free - Resource-managed iio_device_free()
- * @dev:		Device this iio_dev belongs to
- * @iio_dev:		the iio_dev associated with the device
- *
- * Free iio_dev allocated with devm_iio_device_alloc().
- */
-void devm_iio_device_free(struct device *dev, struct iio_dev *iio_dev)
-{
-	int rc;
-
-	rc = devres_release(dev, devm_iio_device_release,
-			    devm_iio_device_match, iio_dev);
-	WARN_ON(rc);
-}
-EXPORT_SYMBOL_GPL(devm_iio_device_free);
-
 /**
  * iio_chrdev_open() - chrdev file open for buffer access and ioctls
  * @inode:	Inode structure for identifying the device in the file system
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 0eb9e8d7ec68..2920c065ab9b 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -686,9 +686,7 @@ static inline struct iio_dev *iio_priv_to_dev(void *priv)
 }
 
 void iio_device_free(struct iio_dev *indio_dev);
-int devm_iio_device_match(struct device *dev, void *res, void *data);
 struct iio_dev *devm_iio_device_alloc(struct device *dev, int sizeof_priv);
-void devm_iio_device_free(struct device *dev, struct iio_dev *indio_dev);
 struct iio_trigger *devm_iio_trigger_alloc(struct device *dev,
 						const char *fmt, ...);
 void devm_iio_trigger_free(struct device *dev, struct iio_trigger *iio_trig);
-- 
2.20.1