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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-10 10:01:33 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-10 10:01:33 -0700
commite6bbe1d05353a29628a4ca72d88bac0bdcec5f38 (patch)
treed662a065cfa9f0e32145887e46947d29a89d9f9d /drivers/xen/gntdev.c
parent7e34d70a7163b236f520ef4fc0d7c50093dd3746 (diff)
parentf7644cbfcdf03528f0f450f3940c4985b2291f49 (diff)
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Merge 4.2-rc6 into usb-next
We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/xen/gntdev.c')
-rw-r--r--drivers/xen/gntdev.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 67b9163db718..0dbb222daaf1 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -568,12 +568,14 @@ static int gntdev_release(struct inode *inode, struct file *flip)
pr_debug("priv %p\n", priv);
+ mutex_lock(&priv->lock);
while (!list_empty(&priv->maps)) {
map = list_entry(priv->maps.next, struct grant_map, next);
list_del(&map->next);
gntdev_put_map(NULL /* already removed */, map);
}
WARN_ON(!list_empty(&priv->freeable_maps));
+ mutex_unlock(&priv->lock);
if (use_ptemod)
mmu_notifier_unregister(&priv->mn, priv->mm);