EDAC: Export edac sysfs class to users.

Move toplevel sysfs class to the stub and make it available to
non-modularized code too. Add proper refcounting of its users and move
the registration functionality into the reference counting routines.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>

1 files changed, 1 insertions, 78 deletions

diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c
index 7e1374afd96..be4b075c309 100644
--- a/drivers/edac/edac_module.c
+++ b/drivers/edac/edac_module.c
@@ -27,15 +27,6 @@ EXPORT_SYMBOL_GPL(edac_debug_level);
 struct workqueue_struct *edac_workqueue;
 
 /*
- * sysfs object: /sys/devices/system/edac
- *      need to export to other files in this modules
- */
-static struct sysdev_class edac_class = {
-        .name = "edac",
-};
-static int edac_class_valid;
-
-/*
  * edac_op_state_to_string()
  */
 char *edac_op_state_to_string(int opstate)
@@ -55,60 +46,6 @@ char *edac_op_state_to_string(int opstate)
 }
 
 /*
- * edac_get_edac_class()
- *
- *      return pointer to the edac class of 'edac'
- */
-struct sysdev_class *edac_get_edac_class(void)
-{
-        struct sysdev_class *classptr = NULL;
-
-        if (edac_class_valid)
-                classptr = &edac_class;
-
-        return classptr;
-}
-
-/*
- * edac_register_sysfs_edac_name()
- *
- *      register the 'edac' into /sys/devices/system
- *
- * return:
- *      0  success
- *      !0 error
- */
-static int edac_register_sysfs_edac_name(void)
-{
-        int err;
-
-        /* create the /sys/devices/system/edac directory */
-        err = sysdev_class_register(&edac_class);
-
-        if (err) {
-                debugf1("%s() error=%d\n", __func__, err);
-                return err;
-        }
-
-        edac_class_valid = 1;
-        return 0;
-}
-
-/*
- * sysdev_class_unregister()
- *
- *      unregister the 'edac' from /sys/devices/system
- */
-static void edac_unregister_sysfs_edac_name(void)
-{
-        /* only if currently registered, then unregister it */
-        if (edac_class_valid)
-                sysdev_class_unregister(&edac_class);
-
-        edac_class_valid = 0;
-}
-
-/*
  * edac_workqueue_setup
  *      initialize the edac work queue for polling operations
  */
@@ -154,21 +91,11 @@ static int __init edac_init(void)
         edac_pci_clear_parity_errors();
 
         /*
-         * perform the registration of the /sys/devices/system/edac class object
-         */
-        if (edac_register_sysfs_edac_name()) {
-                edac_printk(KERN_ERR, EDAC_MC,
-                        "Error initializing 'edac' kobject\n");
-                err = -ENODEV;
-                goto error;
-        }
-
-        /*
          * now set up the mc_kset under the edac class object
          */
         err = edac_sysfs_setup_mc_kset();
         if (err)
-                goto sysfs_setup_fail;
+                goto error;
 
         /* Setup/Initialize the workq for this core */
         err = edac_workqueue_setup();
@@ -183,9 +110,6 @@ static int __init edac_init(void)
 workq_fail:
         edac_sysfs_teardown_mc_kset();
 
-sysfs_setup_fail:
-        edac_unregister_sysfs_edac_name();
-
 error:
         return err;
 }
@@ -201,7 +125,6 @@ static void __exit edac_exit(void)
         /* tear down the various subsystems */
         edac_workqueue_teardown();
         edac_sysfs_teardown_mc_kset();
-        edac_unregister_sysfs_edac_name();
 }
 
 /*