diff --git a/MAINTAINERS b/MAINTAINERS
index 9aed5f3e04..cc364afef7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2507,7 +2507,7 @@ F: scsi/*
 
 Block Jobs
 M: John Snow <jsnow@redhat.com>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 L: qemu-block@nongnu.org
 S: Supported
 F: blockjob.c
@@ -2546,7 +2546,7 @@ T: git https://repo.or.cz/qemu/armbru.git block-next
 
 Dirty Bitmaps
 M: Eric Blake <eblake@redhat.com>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 R: John Snow <jsnow@redhat.com>
 L: qemu-block@nongnu.org
 S: Supported
@@ -2770,13 +2770,13 @@ F: scripts/*.py
 F: tests/*.py
 
 Benchmark util
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 S: Maintained
 F: scripts/simplebench/
 T: git https://src.openvz.org/scm/~vsementsov/qemu.git simplebench
 
 Transactions helper
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 S: Maintained
 F: include/qemu/transactions.h
 F: util/transactions.c
@@ -3360,7 +3360,7 @@ F: block/iscsi-opts.c
 
 Network Block Device (NBD)
 M: Eric Blake <eblake@redhat.com>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 L: qemu-block@nongnu.org
 S: Maintained
 F: block/nbd*
@@ -3456,7 +3456,7 @@ F: block/dmg.c
 parallels
 M: Stefan Hajnoczi <stefanha@redhat.com>
 M: Denis V. Lunev <den@openvz.org>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 L: qemu-block@nongnu.org
 S: Supported
 F: block/parallels.c
diff --git a/block/nbd.c b/block/nbd.c
index 34b9429de3..567872ac53 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -533,8 +533,8 @@ err:
         if (i != -1) {
             s->requests[i].coroutine = NULL;
             s->in_flight--;
-            qemu_co_queue_next(&s->free_sema);
         }
+        qemu_co_queue_next(&s->free_sema);
     }
     qemu_co_mutex_unlock(&s->send_mutex);
     return rc;
diff --git a/docs/tools/qemu-nbd.rst b/docs/tools/qemu-nbd.rst
index 2b8c90c354..4c950f6199 100644
--- a/docs/tools/qemu-nbd.rst
+++ b/docs/tools/qemu-nbd.rst
@@ -27,7 +27,7 @@ Options
 .. program:: qemu-nbd
 
 *filename* is a disk image filename, or a set of block
-driver options if ``--image-opts`` is specified.
+driver options if :option:`--image-opts` is specified.
 
 *dev* is an NBD device.
 
@@ -165,9 +165,9 @@ driver options if ``--image-opts`` is specified.
 .. option:: --tls-creds=ID
 
   Enable mandatory TLS encryption for the server by setting the ID
-  of the TLS credentials object previously created with the --object
-  option; or provide the credentials needed for connecting as a client
-  in list mode.
+  of the TLS credentials object previously created with the
+  :option:`--object` option; or provide the credentials needed for
+  connecting as a client in list mode.
 
 .. option:: --tls-hostname=hostname
 
@@ -176,11 +176,11 @@ driver options if ``--image-opts`` is specified.
   against information in the server provided certificate. Sometimes
   it might be required to override the hostname used to perform this
   check. For example, if the NBD client is using a tunnel from localhost
-  to connect to the remote server, the `--tls-hostname` option should
+  to connect to the remote server, the :option:`--tls-hostname` option should
   be used to set the officially expected hostname of the remote NBD
   server. This can also be used if accessing NBD over a UNIX socket
   where there is no inherent hostname available. This is only permitted
-  when acting as a NBD client with the `--list` option.
+  when acting as a NBD client with the :option:`--list` option.
 
 .. option:: --fork