1 files changed, 40 insertions, 0 deletions

diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c
index 9cb082a19d8a..059b5924988b 100644
--- a/drivers/edac/edac_module.c
+++ b/drivers/edac/edac_module.c
@@ -92,6 +92,39 @@ static void edac_workqueue_teardown(void)
 }
 
 /*
+ * sysfs object: /sys/devices/system/edac
+ *      need to export to other files
+ */
+struct bus_type edac_subsys = {
+        .name = "edac",
+        .dev_name = "edac",
+};
+EXPORT_SYMBOL_GPL(edac_subsys);
+
+static int edac_subsys_init(void)
+{
+        int err;
+
+        /* create the /sys/devices/system/edac directory */
+        err = subsys_system_register(&edac_subsys, NULL);
+        if (err)
+                printk(KERN_ERR "Error registering toplevel EDAC sysfs dir\n");
+
+        return err;
+}
+
+static void edac_subsys_exit(void)
+{
+        bus_unregister(&edac_subsys);
+}
+
+/* return pointer to the 'edac' node in sysfs */
+struct bus_type *edac_get_sysfs_subsys(void)
+{
+        return &edac_subsys;
+}
+EXPORT_SYMBOL_GPL(edac_get_sysfs_subsys);
+/*
  * edac_init
  *      module initialization entry point
  */
@@ -101,6 +134,10 @@ static int __init edac_init(void)
 
         edac_printk(KERN_INFO, EDAC_MC, EDAC_VERSION "\n");
 
+        err = edac_subsys_init();
+        if (err)
+                return err;
+
         /*
          * Harvest and clear any boot/initialization PCI parity errors
          *
@@ -129,6 +166,8 @@ err_wq:
         edac_mc_sysfs_exit();
 
 err_sysfs:
+        edac_subsys_exit();
+
         return err;
 }
 
@@ -144,6 +183,7 @@ static void __exit edac_exit(void)
         edac_workqueue_teardown();
         edac_mc_sysfs_exit();
         edac_debugfs_exit();
+        edac_subsys_exit();
 }
 
 /*