From 07dccf3344010f9b9df7fe725da7e73bca2992df Mon Sep 17 00:00:00 2001
From: Akinobu Mita <mita@miraclelinux.com>
Date: Fri, 29 Sep 2006 02:00:22 -0700
Subject: [PATCH] [PATCH] check return value of cpu_callback

Spawing ksoftirqd, migration, or watchdog, and calling init_timers_cpu()
may fail with small memory.  If it happens in initcalls, kernel NULL
pointer dereference happens later.  This patch makes crash happen
immediately in such cases.  It seems a bit better than getting kernel NULL
pointer dereference later.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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