--- zzzz-none-000/linux-3.10.107/drivers/edac/edac_module.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/edac/edac_module.c	2021-02-04 17:41:59.000000000 +0000
@@ -28,7 +28,7 @@
 	if (ret)
 		return ret;
 
-	if (val < 0 || val > 4)
+	if (val > 4)
 		return -EINVAL;
 
 	return param_set_int(buf, kp);
@@ -112,20 +112,23 @@
 
 	err = edac_mc_sysfs_init();
 	if (err)
-		goto error;
+		goto err_sysfs;
 
 	edac_debugfs_init();
 
-	/* Setup/Initialize the workq for this core */
 	err = edac_workqueue_setup();
 	if (err) {
-		edac_printk(KERN_ERR, EDAC_MC, "init WorkQueue failure\n");
-		goto error;
+		edac_printk(KERN_ERR, EDAC_MC, "Failure initializing workqueue\n");
+		goto err_wq;
 	}
 
 	return 0;
 
-error:
+err_wq:
+	edac_debugfs_exit();
+	edac_mc_sysfs_exit();
+
+err_sysfs:
 	return err;
 }