diff --git a/block/block-backend.c b/block/block-backend.c
index a8f2b3440f..7405024e08 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -231,6 +231,9 @@ static void blk_delete(BlockBackend *blk)
     assert(!blk->refcnt);
     assert(!blk->name);
     assert(!blk->dev);
+    if (blk->public.throttle_state) {
+        blk_io_limits_disable(blk);
+    }
     if (blk->root) {
         blk_remove_bs(blk);
     }
diff --git a/block/iscsi.c b/block/iscsi.c
index 716e74abba..42fb0b019c 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -2092,6 +2092,7 @@ static int iscsi_create(const char *filename, QemuOpts *opts, Error **errp)
     BlockDriverState *bs;
     IscsiLun *iscsilun = NULL;
     QDict *bs_options;
+    Error *local_err = NULL;
 
     bs = bdrv_new();
 
@@ -2102,8 +2103,13 @@ static int iscsi_create(const char *filename, QemuOpts *opts, Error **errp)
     iscsilun = bs->opaque;
 
     bs_options = qdict_new();
-    qdict_put(bs_options, "filename", qstring_from_str(filename));
-    ret = iscsi_open(bs, bs_options, 0, NULL);
+    iscsi_parse_filename(filename, bs_options, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        ret = -EINVAL;
+    } else {
+        ret = iscsi_open(bs, bs_options, 0, NULL);
+    }
     QDECREF(bs_options);
 
     if (ret != 0) {
diff --git a/block/snapshot.c b/block/snapshot.c
index bf5c2ca5e1..06b1185d27 100644
--- a/block/snapshot.c
+++ b/block/snapshot.c
@@ -27,6 +27,7 @@
 #include "block/block_int.h"
 #include "qapi/error.h"
 #include "qapi/qmp/qerror.h"
+#include "qapi/qmp/qstring.h"
 
 QemuOptsList internal_snapshot_opts = {
     .name = "snapshot",
@@ -189,14 +190,33 @@ int bdrv_snapshot_goto(BlockDriverState *bs,
     }
 
     if (bs->file) {
+        BlockDriverState *file;
+        QDict *options = qdict_clone_shallow(bs->options);
+        QDict *file_options;
+
+        file = bs->file->bs;
+        /* Prevent it from getting deleted when detached from bs */
+        bdrv_ref(file);
+
+        qdict_extract_subqdict(options, &file_options, "file.");
+        QDECREF(file_options);
+        qdict_put(options, "file", qstring_from_str(bdrv_get_node_name(file)));
+
         drv->bdrv_close(bs);
-        ret = bdrv_snapshot_goto(bs->file->bs, snapshot_id);
-        open_ret = drv->bdrv_open(bs, NULL, bs->open_flags, NULL);
+        bdrv_unref_child(bs, bs->file);
+        bs->file = NULL;
+
+        ret = bdrv_snapshot_goto(file, snapshot_id);
+        open_ret = drv->bdrv_open(bs, options, bs->open_flags, NULL);
+        QDECREF(options);
         if (open_ret < 0) {
-            bdrv_unref(bs->file->bs);
+            bdrv_unref(file);
             bs->drv = NULL;
             return open_ret;
         }
+
+        assert(bs->file->bs == file);
+        bdrv_unref(file);
         return ret;
     }