rcu: Fix coccinelle warnings

Author: Fengguang Wu <fengguang.wu@intel.com>

This commit fixes the following coccinelle warning:

kernel/rcu/tree.c:712:9-10: WARNING: return of 0/1 in function
'rcu_lockdep_current_cpu_online' with return type bool

Return statements in functions returning bool should use
 true/false instead of 1/0.
 Generated by: coccinelle/misc/boolreturn.cocci

Signed-off-by: Fengguang Wu 
Signed-off-by: Paul E. McKenney 
---
 kernel/rcu/tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 3049950..f8c0299 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -725,7 +725,7 @@ bool rcu_lockdep_current_cpu_online(void)
 	bool ret;
 
 	if (in_nmi())
-		return 1;
+		return true;
 	preempt_disable();
 	rdp = this_cpu_ptr(&rcu_sched_data);
 	rnp = rdp->mynode;