github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-28 10:09:10 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

usb: typec: class: drop PD lookup reference

Browse Source 
usb_power_delivery_find() wraps class_find_device_by_name(). That helper
returns a device reference that must be released by the caller.

select_usb_power_delivery_store() only needs this reference while calling
the pd_set callback. Drop it once the callback returns. Otherwise the sysfs
write can pin the selected USB Power Delivery object and prevent it from
being released on unregister.

Fixes: a7cff92f06 ("usb: typec: USB Power Delivery helpers for ports and partners")
Cc: stable <stable@kernel.org>
Signed-off-by: Shuangpeng Bai <shuangpeng.kernel@gmail.com>
Link: https://patch.msgid.link/20260702191329.2648043-1-shuangpeng.kernel@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shuangpeng Bai 2026-07-02 15:13:29 -04:00 committed by Greg Kroah-Hartman
parent b229b22b0a
commit 43ae2f90b7
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/usb/typec/class.c
View File

@ -1619,6 +1619,7 @@ static ssize_t select_usb_power_delivery_store(struct device *dev,
return -EINVAL;
ret = port->ops->pd_set(port, pd);
put_device(&pd->dev);
if (ret)
return ret;