[PATCH] get_cpu_sysdev() signedness fix

Doing (int < NR_CPUS) doesn't dtrt if it's negative..
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/base/cpu.c

@@ -141,7 +141,7 @@ int __devinit register_cpu(struct cpu *cpu, int num, struct node *root)
 	return error;
 }
 
-struct sys_device *get_cpu_sysdev(int cpu)
+struct sys_device *get_cpu_sysdev(unsigned cpu)
 {
 	if (cpu < NR_CPUS)
 		return cpu_sys_devices[cpu];

include/linux/cpu.h

@@ -32,7 +32,7 @@ struct cpu {
 };
 
 extern int register_cpu(struct cpu *, int, struct node *);
-extern struct sys_device *get_cpu_sysdev(int cpu);
+extern struct sys_device *get_cpu_sysdev(unsigned cpu);
 #ifdef CONFIG_HOTPLUG_CPU
 extern void unregister_cpu(struct cpu *, struct node *);
 #endif