[SPARC64]: Fix leak when DR added cpu does not bootup.

Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc64/kernel/smp.c

@@ -90,7 +90,6 @@ static volatile unsigned long callin_flag = 0;
 void __devinit smp_callin(void)
 {
 	int cpuid = hard_smp_processor_id();
-	struct trap_per_cpu *tb = &trap_block[cpuid];;
 
 	__local_per_cpu_offset = __per_cpu_offset(cpuid);
 
@@ -119,11 +118,6 @@ void __devinit smp_callin(void)
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
 
-	if (tb->hdesc) {
-		kfree(tb->hdesc);
-		tb->hdesc = NULL;
-	}
-
 	while (!cpu_isset(cpuid, smp_commenced_mask))
 		rmb();
 
@@ -345,6 +339,7 @@ static struct thread_info *cpu_new_thread = NULL;
 
 static int __devinit smp_boot_one_cpu(unsigned int cpu)
 {
+	struct trap_per_cpu *tb = &trap_block[cpu];
 	unsigned long entry =
 		(unsigned long)(&sparc64_cpu_startup);
 	unsigned long cookie =
@@ -389,6 +384,11 @@ static int __devinit smp_boot_one_cpu(unsigned int cpu)
 	}
 	cpu_new_thread = NULL;
 
+	if (tb->hdesc) {
+		kfree(tb->hdesc);
+		tb->hdesc = NULL;
+	}
+
 	return ret;
 }