From: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Date: Mon, 28 Nov 2011 16:49:10 +0000 (-0500)
Subject: xen/gntalloc: release grant references on page free
X-Git-Tag: v3.3-rc1~129^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0105d2b4fbc24c2fb6ca9bae650784dd7ddf0b12;p=pandora-kernel.git

xen/gntalloc: release grant references on page free

gnttab_end_foreign_access_ref does not return the grant reference it is
passed to the free list; gnttab_free_grant_reference needs to be
explicitly called. While gnttab_end_foreign_access provides a wrapper
for this, it is unsuitable because it does not return errors.

Reported-by: Anil Madhavapeddy <anil@recoil.org>
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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