[qemu-xen staging] vhost-vdpa :Fix Coverity CID 1430270 / CID 1420267

[patchbot@xxxxxxx]

commit 386494f29e2b902bc501176573bb4c69eab666c4
Author:     Cindy Lu <lulu@xxxxxxxxxx>
AuthorDate: Fri Jul 10 14:46:42 2020 +0800
Commit:     Michael S. Tsirkin <mst@xxxxxxxxxx>
CommitDate: Mon Jul 27 10:28:28 2020 -0400

    vhost-vdpa :Fix Coverity CID 1430270 / CID 1420267
    
    In the function vhost_vdpa_dma_map/unmap, The struct msg was not 
initialized all its fields.
    
    Signed-off-by: Cindy Lu <lulu@xxxxxxxxxx>
    Message-Id: <20200710064642.24505-1-lulu@xxxxxxxxxx>
    Reviewed-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
    Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
    Reviewed-by: Li Qiang <liq3ea@xxxxxxxxx>
    Cc: qemu-stable@xxxxxxxxxx
    Reviewed-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
    Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
 hw/virtio/vhost-vdpa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 65d5aaf08a..4580f3efd8 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -37,7 +37,7 @@ static bool 
vhost_vdpa_listener_skipped_section(MemoryRegionSection *section)
 static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size,
                               void *vaddr, bool readonly)
 {
-    struct vhost_msg_v2 msg;
+    struct vhost_msg_v2 msg = {};
     int fd = v->device_fd;
     int ret = 0;
 
@@ -60,7 +60,7 @@ static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr 
iova, hwaddr size,
 static int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova,
                                 hwaddr size)
 {
-    struct vhost_msg_v2 msg;
+    struct vhost_msg_v2 msg = {};
     int fd = v->device_fd;
     int ret = 0;
 
--
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