From: Oliver Neukum <oliver@neukum.org>
Date: Fri, 27 Apr 2012 12:23:54 +0000 (+0200)
Subject: USB: cdc-wdm: sanitize error returns
X-Git-Tag: v3.4.1~61
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=eae68611b2683cc1a9a7ca669c60a65020071004;p=platform%2Fkernel%2Flinux-stable.git

USB: cdc-wdm: sanitize error returns

commit 24a85bae5da2b43fed423859c09c5a81ab359473 upstream.

wdm_flush() returns unsanitized USB error codes.
They must be cleaned up to before being anded to user space

Signed-off-by: Oliver Neukum <oneukum@suse.de>
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 0bb2b32..0209b46 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -534,7 +534,7 @@ static int wdm_flush(struct file *file, fl_owner_t id)
 		dev_err(&desc->intf->dev, "Error in flush path: %d\n",
 			desc->werr);
 
-	return desc->werr;
+	return usb_translate_errors(desc->werr);
 }
 
 static unsigned int wdm_poll(struct file *file, struct poll_table_struct *wait)