1 files changed, 8 insertions, 11 deletions

diff --git a/block/vvfat.c b/block/vvfat.c
index 7ddc962436..b184eca6fc 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -985,12 +985,6 @@ static BDRVVVFATState *vvv = NULL;
 static int enable_write_target(BDRVVVFATState *s, Error **errp);
 static int is_consistent(BDRVVVFATState *s);
 
-static void vvfat_rebind(BlockDriverState *bs)
-{
-    BDRVVVFATState *s = bs->opaque;
-    s->bs = bs;
-}
-
 static QemuOptsList runtime_opts = {
     .name = "vvfat",
     .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
@@ -2923,6 +2917,7 @@ static BlockDriver vvfat_write_target = {
 static int enable_write_target(BDRVVVFATState *s, Error **errp)
 {
     BlockDriver *bdrv_qcow = NULL;
+    BlockDriverState *backing;
     QemuOpts *opts = NULL;
     int ret;
     int size = sector2cluster(s, s->sector_count);
@@ -2971,10 +2966,13 @@ static int enable_write_target(BDRVVVFATState *s, Error **errp)
     unlink(s->qcow_filename);
 #endif
 
-    bdrv_set_backing_hd(s->bs, bdrv_new());
-    s->bs->backing_hd->drv = &vvfat_write_target;
-    s->bs->backing_hd->opaque = g_new(void *, 1);
-    *(void**)s->bs->backing_hd->opaque = s;
+    backing = bdrv_new();
+    bdrv_set_backing_hd(s->bs, backing);
+    bdrv_unref(backing);
+
+    s->bs->backing->bs->drv = &vvfat_write_target;
+    s->bs->backing->bs->opaque = g_new(void *, 1);
+    *(void**)s->bs->backing->bs->opaque = s;
 
     return 0;
 
@@ -3008,7 +3006,6 @@ static BlockDriver bdrv_vvfat = {
     .bdrv_parse_filename    = vvfat_parse_filename,
     .bdrv_file_open         = vvfat_open,
     .bdrv_close             = vvfat_close,
-    .bdrv_rebind            = vvfat_rebind,
 
     .bdrv_read              = vvfat_co_read,
     .bdrv_write             = vvfat_co_write,