Commit ef53b92e authored May 16, 2017 by Johan Hovold Committed by Greg Kroah-Hartman May 17, 2017

USB: core: of: document reference taken by companion helper



Document that the new companion-device lookup helper takes a reference
to the companion device which needs to be dropped after use.

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent a7415477

drivers/usb/core/of.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -53,6 +53,9 @@ EXPORT_SYMBOL_GPL(usb_of_get_child_node);
		*
		* Find the companion device from platform bus.
		*
		* Takes a reference to the returned struct device which needs to be dropped
		* after use.
		*
		* Return: On success, a pointer to the companion device, %NULL on failure.
		*/
		struct device usb_of_get_companion_dev(struct device dev)