dm_swap_table() will now fail for a table with no targets.
--- diff/drivers/md/dm.c 2003-07-01 15:36:42.000000000 +0100
+++ source/drivers/md/dm.c 2003-07-02 11:53:22.000000000 +0100
@@ -664,10 +664,10 @@
md->map = t;
size = dm_table_get_size(t);
- set_capacity(md->disk, size);
- if (size == 0)
- return 0;
+ if (!size)
+ return -EINVAL;
+ set_capacity(md->disk, size);
dm_table_event_callback(md->map, event_callback, md);
dm_table_get(t);
@@ -759,8 +759,10 @@
__unbind(md);
r = __bind(md, table);
- if (r)
+ if (r) {
+ up_write(&md->lock);
return r;
+ }
up_write(&md->lock);
return 0;
