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Commit 97cb95d1 authored by Pete Zaitcev's avatar Pete Zaitcev Committed by Greg Kroah-Hartman
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usblp: Don't let suspend to kill ->used 



Suspend destroys refcounting for open/release.

Signed-off-by: default avatarPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent dda034bc

drivers/usb/class/usblp.c

+2 −3
Original line number Original line Diff line number Diff line
@@ -347,11 +347,9 @@ static int handle_bidir (struct usblp *usblp) 
	if (usblp->bidir && usblp->used && !usblp->sleeping) {

	if (usblp->bidir && usblp->used && !usblp->sleeping) {

		usblp->readcount = 0;

		usblp->readcount = 0;

		usblp->readurb->dev = usblp->dev;

		usblp->readurb->dev = usblp->dev;

		if (usb_submit_urb(usblp->readurb, GFP_KERNEL) < 0) {

		if (usb_submit_urb(usblp->readurb, GFP_KERNEL) < 0)

			usblp->used = 0;

			return -EIO;

			return -EIO;

	}

	}

	}





	return 0;

	return 0;

}

}
@@ -412,6 +410,7 @@ static int usblp_open(struct inode *inode, struct file *file) 
	usblp->readurb->status = 0;

	usblp->readurb->status = 0;





	if (handle_bidir(usblp) < 0) {

	if (handle_bidir(usblp) < 0) {

		usblp->used = 0;

		file->private_data = NULL;

		file->private_data = NULL;

		retval = -EIO;

		retval = -EIO;

	}

	}