From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 21 Jan 2016 13:28:25 +0000 (+0000)
Subject: x86: fix kernel crash on geode devices (#21667)
X-Git-Url: http://git.ozo.com/?a=commitdiff_plain;h=c224ead06d01116555e1f2f48bfa8084bd08eb58;p=openwrt-working-2016%2F.git

x86: fix kernel crash on geode devices (#21667)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48428 3c298f89-4303-0410-b956-a3cf2f4a3e73
---

diff --git a/target/linux/x86/patches-4.4/100-fix_cs5535_clockevt.patch b/target/linux/x86/patches-4.4/100-fix_cs5535_clockevt.patch
new file mode 100644
index 0000000000..c49ddca7d6
--- /dev/null
+++ b/target/linux/x86/patches-4.4/100-fix_cs5535_clockevt.patch
@@ -0,0 +1,12 @@
+--- a/drivers/clocksource/cs5535-clockevt.c
++++ b/drivers/clocksource/cs5535-clockevt.c
+@@ -129,7 +129,8 @@ static irqreturn_t mfgpt_tick(int irq, v
+ 		cs5535_mfgpt_write(cs5535_event_clock, MFGPT_REG_SETUP,
+ 				MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
+ 
+-	cs5535_clockevent.event_handler(&cs5535_clockevent);
++	if (cs5535_clockevent.event_handler)
++		cs5535_clockevent.event_handler(&cs5535_clockevent);
+ 	return IRQ_HANDLED;
+ }
+