iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Johan Hovold 2017-05-16 16:26:14 +02:00 committed by Greg Kroah-Hartman
parent a7415477a2
commit ef53b92ece
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/core/of.c
View File

@ -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)