From: Oliver Neukum <oneukum@suse.de>
Date: Fri, 20 Mar 2015 10:25:17 +0000 (+0100)
Subject: cdc-acm: surpress misleading message
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6c8074e90c7350f5e38caf1e8d73e98df4115403;p=openwrt%2Fstaging%2Fblogic.git

cdc-acm: surpress misleading message

During the entry intro suspend a misleading message can be
printed. Surpress it by checking the specific error.

Signed-off-by: Oliver Neukum <oneukum@suse.de>0
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 58241ec1e91d..43cb05863fac 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -360,7 +360,7 @@ static void acm_ctrl_irq(struct urb *urb)
 	}
 exit:
 	retval = usb_submit_urb(urb, GFP_ATOMIC);
-	if (retval)
+	if (retval && retval != -EPERM)
 		dev_err(&acm->control->dev, "%s - usb_submit_urb failed: %d\n",
 							__func__, retval);
 }