From 2867d6b8f96d899153bc7dd030e0644afe816592 Mon Sep 17 00:00:00 2001
From: inmarket <andrewh@inmarket.com.au>
Date: Tue, 18 Aug 2015 07:39:33 +1000
Subject: [PATCH] Another fix to gdriver

---
 src/gdriver/gdriver.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/gdriver/gdriver.c b/src/gdriver/gdriver.c
index c90ad8e3..116abd32 100644
--- a/src/gdriver/gdriver.c
+++ b/src/gdriver/gdriver.c
@@ -52,13 +52,12 @@ GDriver *gdriverRegister(const GDriverVMT *vmt, void *param) {
 		return 0;
 	}
 
-	// Add it to the driver chain
-	if (dhead) {
+	// Add it to the driver chain (at the end)
+	if (dhead)
 		dtail->driverchain = pd;
-		dtail = pd;
-	} else {
-		dhead = dtail = pd;
-	}
+	else
+		dhead = pd;
+	dtail = pd;
 
 	// Do the post init
 	if (vmt->postinit)
@@ -81,6 +80,8 @@ void gdriverUnRegister(GDriver *driver) {
 		for(pd = dhead; pd->driverchain; pd = pd->driverchain) {
 			if (pd->driverchain == driver) {
 				pd->driverchain = driver->driverchain;
+				if (!pd->driverchain)
+					dtail = pd;
 				break;
 			}
 		}