From a813213d73bb29d6986c3e93669a9cd5f7984364 Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Mon, 14 Aug 2006 22:45:49 -0700 Subject: [PATCH] [IA64] panic if topology_init kzalloc fails There really is no sense trying to continue if the kzalloc of sysfs_cpus[] fails in ia64 topology_init. The code calling into here doesn't check errors very well, and one ends up with a nonobvious boot failure that wastes peoples time debugging. See for example the lkml thread at: http://lkml.org/lkml/2006/3/2/215 Since the system is totally dead when this kzalloc fails, not having yet even booted, might as well announce one's death boldly and plainly. Signed-off-by: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/kernel/topology.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index d24fa393b182..f648c610b10c 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c @@ -67,10 +67,8 @@ static int __init topology_init(void) #endif sysfs_cpus = kzalloc(sizeof(struct ia64_cpu) * NR_CPUS, GFP_KERNEL); - if (!sysfs_cpus) { - err = -ENOMEM; - goto out; - } + if (!sysfs_cpus) + panic("kzalloc in topology_init failed - NR_CPUS too big?"); for_each_present_cpu(i) { if((err = arch_register_cpu(i))) -- 2.20.1