--- zzzz-none-000/linux-3.10.107/drivers/sbus/char/display7seg.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/sbus/char/display7seg.c	2021-02-04 17:41:59.000000000 +0000
@@ -4,12 +4,12 @@
  * Copyright (c) 2000 Eric Brower (ebrower@usa.net)
  */
 
+#include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/errno.h>
 #include <linux/major.h>
-#include <linux/init.h>
 #include <linux/miscdevice.h>
 #include <linux/ioport.h>		/* request_region */
 #include <linux/slab.h>
@@ -144,10 +144,7 @@
 
 	case D7SIOCTM:
 		/* toggle device mode-- flip display orientation */
-		if (regs & D7S_FLIP)
-			regs &= ~D7S_FLIP;
-		else
-			regs |= D7S_FLIP;
+		regs ^= D7S_FLIP;
 		writeb(regs, p->regs);
 		break;
 	}
@@ -181,7 +178,7 @@
 	if (d7s_device)
 		goto out;
 
-	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	p = devm_kzalloc(&op->dev, sizeof(*p), GFP_KERNEL);
 	err = -ENOMEM;
 	if (!p)
 		goto out;
@@ -232,7 +229,6 @@
 	of_iounmap(&op->resource[0], p->regs, sizeof(u8));
 
 out_free:
-	kfree(p);
 	goto out;
 }
 
@@ -252,7 +248,6 @@
 
 	misc_deregister(&d7s_miscdev);
 	of_iounmap(&op->resource[0], p->regs, sizeof(u8));
-	kfree(p);
 
 	return 0;
 }
@@ -268,7 +263,6 @@
 static struct platform_driver d7s_driver = {
 	.driver = {
 		.name = DRIVER_NAME,
-		.owner = THIS_MODULE,
 		.of_match_table = d7s_match,
 	},
 	.probe		= d7s_probe,