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| author | Daniel De Graaf <dgdegra@tycho.nsa.gov> | 2011-11-28 17:49:10 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-12-16 17:26:02 +0100 |
| commit | 0105d2b4fbc24c2fb6ca9bae650784dd7ddf0b12 (patch) | |
| tree | 9442598b5e9d959ccfd6661e3c727840692028dc /drivers/xen/gntalloc.c | |
| parent | xen/events: prevent calling evtchn_get on invalid channels (diff) | |
| download | linux-0105d2b4fbc24c2fb6ca9bae650784dd7ddf0b12.tar.xz linux-0105d2b4fbc24c2fb6ca9bae650784dd7ddf0b12.zip | |
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>
Diffstat (limited to 'drivers/xen/gntalloc.c')
| -rw-r--r-- | drivers/xen/gntalloc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c index c95181f43a6a..f330a4b8b685 100644 --- a/drivers/xen/gntalloc.c +++ b/drivers/xen/gntalloc.c @@ -191,6 +191,8 @@ static void __del_gref(struct gntalloc_gref *gref) if (!gnttab_end_foreign_access_ref(gref->gref_id, 0)) return; + + gnttab_free_grant_reference(gref->gref_id); } gref_size--; |