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USB: cdc-acm: Do not log urb submission errors on disconnect
authorHans de Goede <hdegoede@redhat.com>
Sun, 14 Jan 2018 15:09:00 +0000 (16:09 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 3 Feb 2018 16:05:42 +0000 (17:05 +0100)
commitc3b1f3137751ca44d90a416f741794465641b522
treed5bdcdac3ffab85cb5c18310e35919e79ded50d3
parent068cc4ad2b233eaff1d60552353daee8c047f5e2
USB: cdc-acm: Do not log urb submission errors on disconnect

commit f0386c083c2ce85284dc0b419d7b89c8e567c09f upstream.

When disconnected sometimes the cdc-acm driver logs errors like these:

[20278.039417] cdc_acm 2-2:2.1: urb 9 failed submission with -19
[20278.042924] cdc_acm 2-2:2.1: urb 10 failed submission with -19
[20278.046449] cdc_acm 2-2:2.1: urb 11 failed submission with -19
[20278.049920] cdc_acm 2-2:2.1: urb 12 failed submission with -19
[20278.053442] cdc_acm 2-2:2.1: urb 13 failed submission with -19
[20278.056915] cdc_acm 2-2:2.1: urb 14 failed submission with -19
[20278.060418] cdc_acm 2-2:2.1: urb 15 failed submission with -19

Silence these by not logging errors when the result is -ENODEV.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-acm.c