Without this fix, guest crashes with drive=virtio.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit dbd483242c2e6dfaacb9fd3d20c333bbdad87243)
---
 hw/qdev-properties.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index 9e123ae..277ff9e 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -20,7 +20,7 @@ static void bit_prop_set(DeviceState *dev, Property *props, bool val)
     uint32_t *p = qdev_get_prop_ptr(dev, props);
     uint32_t mask = qdev_get_prop_mask(props);
     if (val)
-        *p |= ~mask;
+        *p |= mask;
     else
         *p &= ~mask;
 }
-- 
1.6.6.144.g5c3af