From 934ad4c235f87dcb9206abdfa22922358999afab Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 17 Aug 2012 19:49:09 -0400
Subject: [PATCH] vfio: don't dereference after kfree...
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
drivers/vfio/vfio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 9591e2b509d794..0b025d58de813e 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -416,8 +416,9 @@ static void vfio_device_release(struct kref *kref)
/* Device reference always implies a group reference */
static void vfio_device_put(struct vfio_device *device)
{
+ struct vfio_group *group = device->group;
kref_put(&device->kref, vfio_device_release);
- vfio_group_put(device->group);
+ vfio_group_put(group);
}
static void vfio_device_get(struct vfio_device *device)
--
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