From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 10 Apr 2012 05:22:39 +0000 (+0900)
Subject: sh: kgdb: Fix up NULL pointer deref by kgdb_nmicallback.
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fd34ef9bc44b87d746b7178e9c4ba51163b46884;p=linux-beck.git

sh: kgdb: Fix up NULL pointer deref by kgdb_nmicallback.

kgdb_nmicallback expects valid register state, so just fetch the register
state with get_irq_regs() as on other platforms.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index ba8e76325d12..38b313909ac9 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -313,7 +313,7 @@ BUILD_TRAP_HANDLER(singlestep)
 
 static void kgdb_call_nmi_hook(void *ignored)
 {
-	kgdb_nmicallback(raw_smp_processor_id(), NULL);
+	kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
 }
 
 void kgdb_roundup_cpus(unsigned long flags)