Hi Johan,
I got a report from a user that their device fails with
> cdc_acm 2-1.2:1.1: acm_start_wb - usb_submit_urb(write bulk) failed: -22
> cdc_acm 2-1.2:1.1: acm_start_wb - usb_submit_urb(write bulk) failed: -22
> cdc_acm 2-1.2:1.1: acm_start_wb - usb_submit_urb(write bulk) failed: -22
> cdc_acm 2-1.2:1.1: acm_start_wb - usb_submit_urb(write bulk) failed: -22
in dmesg after switching on runtime PM since their last stable update.
Reverting 140cb81ac8c625942a1d695875932c615767a526 (its stable equivalent)
resolves the issue.
commit 140cb81ac8c625942a1d695875932c615767a526
Author: Johan Hovold <jhov...@gmail.com>
Date: Mon May 26 19:23:38 2014 +0200
USB: cdc-acm: fix broken runtime suspend
As far as I can tell, your patch is correct, but nevertheless, they
see this error. What is to be done?
Regards
Oliver
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