EDAC: Fix some refcount leaks

kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add()

   If this function returns an error, kobject_put() must be called to
   properly clean up the memory associated with the object.

Fix this by calling kobject_put() when kobject_init_and_add() fails.

Fixes: b2ed215 ("Kobject: change drivers/edac to use kobject_init_and_add")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>

drivers/edac/edac_device_sysfs.c

@@ -539,7 +539,7 @@ static int edac_device_create_block(struct edac_device_ctl_info *edac_dev,
 		edac_dbg(1, "Failed to register instance '%s'\n", block->name);
 		kobject_put(main_kobj);
 		err = -ENODEV;
-		goto err_out;
+		goto err_on_attrib;
 	}
 
 	/* If there are driver level block attributes, then added them
@@ -637,7 +637,7 @@ static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev,
 		edac_dbg(2, "Failed to register instance '%s'\n",
 			 instance->name);
 		kobject_put(main_kobj);
-		goto err_out;
+		goto edac_device_create_instance;
 	}
 
 	edac_dbg(4, "now register '%d' blocks for instance %d\n",