[MIPS] fix warning message on SMP kernels

This patch fixes a (harmless) warning message.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/smp.c

@@ -87,8 +87,8 @@ struct plat_smp_ops *mp_ops;
 
 __cpuinit void register_smp_ops(struct plat_smp_ops *ops)
 {
-	if (ops)
-		printk(KERN_WARNING "Overriding previous set SMP ops\n");
+	if (mp_ops)
+		printk(KERN_WARNING "Overriding previously set SMP ops\n");
 
 	mp_ops = ops;
 }