From: Karsten Wiese <fzuuzf@googlemail.com>
Date: Thu, 26 Feb 2009 00:47:48 +0000 (+0100)
Subject: USB: EHCI: Fix isochronous URB leak
X-Git-Tag: v2.6.27.21~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=853998f496e6541748149f161ccd6882d4788f99;p=pandora-kernel.git

USB: EHCI: Fix isochronous URB leak

commit 508db8c954d55ed30f870d2c24d741ba6269d13c upstream.

ehci-hcd uses usb_get_urb() and usb_put_urb() in an unbalanced way causing
isochronous URB's kref.counts incrementing once per usb_submit_urb() call.
The culprit is *usb being set to NULL when usb_put_urb() is called after URB
is given back.
Due to other fixes there is no need for ehci-hcd to deal with usb_get_urb()
nor usb_put_urb() anymore, so patch removes their usages in ehci-hcd.
Patch also makes ehci_to_hcd(ehci)->self.bandwidth_allocated adjust, if a
stream finishes.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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