From cc650a7a9f5ebc3f9290a8e20e3f55b4f52f849e Mon Sep 17 00:00:00 2001
From: Kyle McMartin <kyle@parisc-linux.org>
Date: Wed, 30 May 2007 02:36:00 -0400
Subject: [PATCH] [PARISC] be more defensive in process.c::get_wchan

While debugging, I noticed we don't check the task_struct arg passed to
get_wchan, whereas everyone else does.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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