From: Oliver Neukum <oneukum@suse.de>
Date: Fri, 20 Mar 2015 13:28:56 +0000 (+0100)
Subject: cdc-wdm: return correct error codes
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=76cb03e7d5d7ba49175784dce961696da66c44cc;p=openwrt%2Fstaging%2Fblogic.git

cdc-wdm: return correct error codes

Lieing to user space is wrong. The real reason for a failure
to write should be returned to user space.

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-wdm.c b/drivers/usb/class/cdc-wdm.c
index a051a7a2b1bd..f053b41fae7f 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -339,7 +339,7 @@ static ssize_t wdm_write
 	desc->werr = 0;
 	spin_unlock_irq(&desc->iuspin);
 	if (we < 0)
-		return -EIO;
+		return usb_translate_errors(we);
 
 	buf = kmalloc(count, GFP_KERNEL);
 	if (!buf) {