From c7e4118a96f97e1196edb0a2f0731ebbb95bdbf8 Mon Sep 17 00:00:00 2001
From: Vincent Wen <vincentwenlinux@gmail.com>
Date: Thu, 19 Jul 2012 09:11:16 +0200
Subject: [PATCH] --- yaml --- r: 312131 b: refs/heads/master c:
 e909be825212da62433e805f03586015a04f3c78 h: refs/heads/master i:   312129:
 18444c45b0a43df0a0c4ccedefc2094cbc3fc610   312127:
 f93ed4b5d175706b5782689d611f023fda3b2627 v: v3

---
 [refs]                         | 2 +-
 trunk/arch/mips/kernel/traps.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 4d93183acaec..73ec5e9c8e4b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ca760ca5238c55cd0e29291c63e35ac6634d385f
+refs/heads/master: e909be825212da62433e805f03586015a04f3c78
diff --git a/trunk/arch/mips/kernel/traps.c b/trunk/arch/mips/kernel/traps.c
index ce95f2c41f3f..9716f057a77b 100644
--- a/trunk/arch/mips/kernel/traps.c
+++ b/trunk/arch/mips/kernel/traps.c
@@ -132,6 +132,9 @@ static void show_backtrace(struct task_struct *task, const struct pt_regs *regs)
 	unsigned long ra = regs->regs[31];
 	unsigned long pc = regs->cp0_epc;
 
+	if (!task)
+		task = current;
+
 	if (raw_show_trace || !__kernel_text_address(pc)) {
 		show_raw_backtrace(sp);
 		return;