From 014e20d8a6528670031cc4b0d971337f1f8f8529 Mon Sep 17 00:00:00 2001
From: Michael Gehring <mg@ebfe.org>
Date: Mon, 22 Jun 2015 01:52:57 +0200
Subject: [PATCH] proc: don't deref nil pointer if getG fails

---
 proc/threads.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/proc/threads.go b/proc/threads.go
index daadd069..859d6ddb 100644
--- a/proc/threads.go
+++ b/proc/threads.go
@@ -308,6 +308,8 @@ func (thread *Thread) getG() (g *G, err error) {
 		return nil, err
 	}
 	g, err = parseG(thread, regs.CX(), false)
-	g.thread = thread
+	if err == nil {
+		g.thread = thread
+	}
 	return
 }