drivers/edac: fix edac_mc sysfs completion code

This patch refactors the 'releasing' of kobjects for the edac_mc type of
device.  The correct pattern of kobject release is followed.

As internal kobjs are allocated they bump a ref count on the top level kobj.
It in turn has a module ref count on the edac_core module.  When internal
kobjects are released, they dec the ref count on the top level kobj.  When the
top level kobj reaches zero, it decrements the ref count on the edac_core
object, allow it to be unloaded, as all resources have all now been released.

Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h
index 37a08aa87d3e..6368cc658fc6 100644
--- a/drivers/edac/edac_module.h
+++ b/drivers/edac/edac_module.h
@@ -18,11 +18,15 @@
  * INTERNAL EDAC MODULE:
  * EDAC memory controller sysfs create/remove functions
  * and setup/teardown functions
+ *
+ * edac_mc objects
  */
+extern int edac_sysfs_setup_mc_kset(void);
+extern void edac_sysfs_teardown_mc_kset(void);
+extern int edac_mc_register_sysfs_main_kobj(struct mem_ctl_info *mci);
+extern void edac_mc_unregister_sysfs_main_kobj(struct mem_ctl_info *mci);
 extern int edac_create_sysfs_mci_device(struct mem_ctl_info *mci);
 extern void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci);
-extern int edac_sysfs_memctrl_setup(void);
-extern void edac_sysfs_memctrl_teardown(void);
 extern void edac_check_mc_devices(void);
 extern int edac_get_log_ue(void);
 extern int edac_get_log_ce(void);