[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 <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index d24fa39..f648c61 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -67,10 +67,8 @@
#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)))