Fix for null pointer crash (mga#16390)

Patch from ubuntu
https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1415880

Signed-off-by: Thomas Backlund <tmb@mageia.org>


diff -Nurp broadcom-wl-6.30.223.248.orig/src/wl/sys/wl_linux.c broadcom-wl-6.30.223.248/src/wl/sys/wl_linux.c
--- broadcom-wl-6.30.223.248.orig/src/wl/sys/wl_linux.c	2015-07-22 00:34:53.257279276 +0300
+++ broadcom-wl-6.30.223.248/src/wl/sys/wl_linux.c	2015-07-22 00:36:52.592234315 +0300
@@ -2161,8 +2161,8 @@ wl_start(struct sk_buff *skb, struct net
 	wlif = WL_DEV_IF(dev);
 	wl = WL_INFO(dev);
 
+	skb->prev = NULL;
 	if (WL_ALL_PASSIVE_ENAB(wl) || (WL_RTR() && WL_CONFIG_SMP())) {
-		skb->prev = NULL;
 
 		TXQ_LOCK(wl);