dm: add uevent to core

This patch adds a uevent skeleton to device-mapper.

Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 41c9549b32ad..bb5c1eaca52b 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -7,6 +7,7 @@
 
 #include "dm.h"
 #include "dm-bio-list.h"
+#include "dm-uevent.h"
 
 #include <linux/init.h>
 #include <linux/module.h>
@@ -143,11 +144,19 @@ static int __init local_init(void)
                 return -ENOMEM;
         }
 
+        r = dm_uevent_init();
+        if (r) {
+                kmem_cache_destroy(_tio_cache);
+                kmem_cache_destroy(_io_cache);
+                return r;
+        }
+
         _major = major;
         r = register_blkdev(_major, _name);
         if (r < 0) {
                 kmem_cache_destroy(_tio_cache);
                 kmem_cache_destroy(_io_cache);
+                dm_uevent_exit();
                 return r;
         }
 
@@ -162,6 +171,7 @@ static void local_exit(void)
         kmem_cache_destroy(_tio_cache);
         kmem_cache_destroy(_io_cache);
         unregister_blkdev(_major, _name);
+        dm_uevent_exit();
 
         _major = 0;