From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x226vifsMCXXxNCDRGFeytGg6jlYTXRiWcIq466ycx6f0BrkldGosZ2jdliENRyv+FbIc+/D+ ARC-Seal: i=1; a=rsa-sha256; t=1517590919; cv=none; d=google.com; s=arc-20160816; b=SrFdGqHyuBpSq9rKId++GyG0ew6LkmAZJGWx1BesEdqj5G63MSUXvz/eHNXs3m7IK+ ikF0v4NcfG/BKqiCP3zt0452oom7H56BNxUDxRvsMmtdPayogNHoB1tF22PJRAMOkcGH WV2XZB4BRA5axkuNrYHdIkKKTfwMOWxTN/3JYmZscoYHj7s2KL3krJ51NA0CldzaCmb4 qPzjT8V6KxJmVpudoG6wEwDe+wVxzohZGqItoQfofARwiSt0nFC8RpHd0p2xsq6lJG+j Aw6h3Ay71gZax+0W1zAV5Jh+UdZp9yhMmbWc2RwQHqNWTHs5zjjR4PGA1mt2gpowSgND rAHg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=cm3t7wtCMBpCPDkR8GsfcMo8pu10Q4wo+tUKkicZFrw=; b=vPeTZxWVv+FOh462elRG2XS+xV9VsCuZ3aYCe9g+wdA/oNykwihdDtmxLyMJg5KYr6 MOrnb8X9rNV36QVwl73dBqTHovmBdbwIHh5UMbv2G3NMOk90DywW1XWN5z/lPidwQtdW JiDiGLObsEWbKMwJHhFYvKTAVe35XoA0V+i5axV4hYEnn6jDBwb7nyfjnjrYCunDoRzK OtyUIDOynk6J9SLMCXEHVJoriO/6o8Om4W3VVgO4fFzXnMPJfU8Sx1FXLVqzg3m/YgVR PG/LKOXR/SNWpyl0KWps50vFEBx7PNPItqZidJqgz5DkAB6LdM5tb2W9G4Yn7Er59Nby Z3Ww== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hans de Goede , Oliver Neukum Subject: [PATCH 4.4 57/67] USB: cdc-acm: Do not log urb submission errors on disconnect Date: Fri, 2 Feb 2018 17:58:26 +0100 Message-Id: <20180202140821.585669569@linuxfoundation.org> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180202140815.091718203@linuxfoundation.org> References: <20180202140815.091718203@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1591309416129281728?= X-GMAIL-MSGID: =?utf-8?q?1591309416129281728?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hans de Goede 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 Acked-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -377,7 +377,7 @@ static int acm_submit_read_urb(struct ac res = usb_submit_urb(acm->read_urbs[index], mem_flags); if (res) { - if (res != -EPERM) { + if (res != -EPERM && res != -ENODEV) { dev_err(&acm->data->dev, "%s - usb_submit_urb failed: %d\n", __func__, res);