block: Don't call no_coroutine_fns in qmp_block_resize()

This QMP handler runs in a coroutine, so it must use the corresponding
no_co_wrappers instead.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2185688
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230504115750.54437-5-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

blockdev.c

@@ -2440,7 +2440,7 @@ void coroutine_fn qmp_block_resize(const char *device, const char *node_name,
         return;
     }
 
-    blk = blk_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, errp);
+    blk = blk_co_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, errp);
     if (!blk) {
         return;
     }
@@ -2455,7 +2455,7 @@ void coroutine_fn qmp_block_resize(const char *device, const char *node_name,
 
     bdrv_co_lock(bs);
     bdrv_drained_end(bs);
-    blk_unref(blk);
+    blk_co_unref(blk);
     bdrv_co_unlock(bs);
 }