From oldhamca@gmail.com Thu Jun 2 14:32:27 2005
Message-ID: <216d105c050602141677cb4ccd@mail.gmail.com>
Date: Thu, 2 Jun 2005 17:16:34 -0400
From: "C. Adam Oldham" <oldhamca@gmail.com>
To: greg@kroah.com
Subject: USB: Fix race condition in usblp_write
Initialize status fields in the read and write urbs to prevent a race
condition with open/read/close - open/write/close sequences.
Fixes bug #4432 at bugzilla.kernel.org
Signed-off-by: Adam Oldham <oldhamca@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/class/usblp.c | 2 ++
1 files changed, 2 insertions(+)
--- gregkh-2.6.orig/drivers/usb/class/usblp.c 2005-06-01 13:51:14.000000000 -0700
+++ gregkh-2.6/drivers/usb/class/usblp.c 2005-06-05 23:42:36.000000000 -0700
@@ -379,6 +379,8 @@
usblp->writeurb->transfer_buffer_length = 0;
usblp->wcomplete = 1; /* we begin writeable */
usblp->rcomplete = 0;
+ usblp->writeurb->status = 0;
+ usblp->readurb->status = 0;
if (usblp->bidir) {
usblp->readcount = 0;