On Fri, 10 Nov 2017, Sébastien Szymanski wrote:

When everything goes smoothly, ret is set to 0 which makes the function
to return EIO error.

Fixes: 8e9faa15469e ("HID: cp2112: fix gpio-callback error handling")
Signed-off-by: Sébastien Szymanski <redacted>
---
Changes in v2:
 - rework error handling to have only one exit path as suggested by
   Benjamin Tissoires [off-list ref]

Applied to for-4.15/upstream.

-- 
Jiri Kosina
SUSE Labs