linux-kernel - [PATCH 2/9] usblp: Don't let suspend to kill ->used

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Message-Id: <1181347441440-git-send-email-gregkh@suse.de>
Date:	Fri,  8 Jun 2007 17:03:47 -0700
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-usb-devel@...ts.sourceforge.net
Cc:	linux-kernel@...r.kernel.org, Pete Zaitcev <zaitcev@...hat.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 2/9] usblp: Don't let suspend to kill ->used

From: Pete Zaitcev <zaitcev@...hat.com>

Suspend destroys refcounting for open/release.

Signed-off-by: Pete Zaitcev <zaitcev@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/usb/class/usblp.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 7b1edfe..6778f9a 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -347,10 +347,8 @@ static int handle_bidir (struct usblp *usblp)
 	if (usblp->bidir && usblp->used && !usblp->sleeping) {
 		usblp->readcount = 0;
 		usblp->readurb->dev = usblp->dev;
-		if (usb_submit_urb(usblp->readurb, GFP_KERNEL) < 0) {
-			usblp->used = 0;
+		if (usb_submit_urb(usblp->readurb, GFP_KERNEL) < 0)
 			return -EIO;
-		}
 	}
 
 	return 0;
@@ -412,6 +410,7 @@ static int usblp_open(struct inode *inode, struct file *file)
 	usblp->readurb->status = 0;
 
 	if (handle_bidir(usblp) < 0) {
+		usblp->used = 0;
 		file->private_data = NULL;
 		retval = -EIO;
 	}
-- 
1.5.2.1

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