virtio-blk: initialise unused blkcfg.size_max field

Newer GCC warns about memcpy()ing uninitialised data.

Signed-off-by: Yunlei Ding <yunlei.ding@citrix.com>
Coverity-ID: 1056088
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>

diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 520ad1bf211ae66b4cef657d4b89937d7750f9e9..fcf893a6957cfa6b99d25bcadfdbce5501d4b1f3 100644 (file)
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -252,6 +252,7 @@ static void virtio_blk_update_config(VirtIODevice *vdev, uint8_t *config)
     stw_raw(&blkcfg.cylinders, cylinders);
     blkcfg.heads = heads;
     blkcfg.sectors = secs;
+    blkcfg.size_max = 0;
     memcpy(config, &blkcfg, sizeof(blkcfg));
 }