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Commit 4fb373df authored by Johan Hovold's avatar Johan Hovold Committed by Rob Herring
Browse files

of/platform: clarify of_find_device_by_node refcounting 



Add comment clarifying that of_find_device_by_node() takes a reference
to the embedded struct device which needs to be dropped after use.

Note that most current users fail to do so.

Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 71ec6f4f

drivers/of/platform.c

+3 −0
Original line number Diff line number Diff line
@@ -45,6 +45,9 @@ static int of_dev_node_match(struct device *dev, void *data) 
 * of_find_device_by_node - Find the platform_device associated with a node

 * @np: Pointer to device tree node

 *

 * Takes a reference to the embedded struct device which needs to be dropped

 * after use.

 *

 * Returns platform_device pointer, or NULL if not found

 */

struct platform_device *of_find_device_by_node(struct device_node *np)