From f4324f3eeb311d1889b8c25076f2669012323842 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 16 Apr 2008 19:55:26 +0100
Subject: [PATCH] [MIPS] IRIX: Handle do_brk() error return correctly.

do_brk's return value was stored in an unsigned long variable before being
tested for less than zero making the test always fail.  Also do_brk's
called irix_map_prda_page wasn't forwarding do_brk() success.

Bug checking the return value of do_brk() and initial fix for it found
by Roel Kluin <12o3l@tiscali.nl>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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