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-rw-r--r--block/vvfat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/vvfat.c b/block/vvfat.c
index cd3b8edd9f..a827d91cce 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -2943,7 +2943,7 @@ static int enable_write_target(BDRVVVFATState *s)
     unlink(s->qcow_filename);
 #endif
 
-    s->bs->backing_hd = calloc(sizeof(BlockDriverState), 1);
+    s->bs->backing_hd = bdrv_new("");
     s->bs->backing_hd->drv = &vvfat_write_target;
     s->bs->backing_hd->opaque = g_malloc(sizeof(void*));
     *(void**)s->bs->backing_hd->opaque = s;