[tip:core/rcu] rcu: Fix typo in rcu_get_gp_kthreads_prio() header comment

["tip-bot for Paul E. McKenney" <tipbot@xxxxxxxxx>]

Commit-ID:  4cf439a200fd621f838270c36c853407a934bcb5
Gitweb:     https://git.kernel.org/tip/4cf439a200fd621f838270c36c853407a934bcb5
Author:     Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Mon, 2 Jul 2018 12:15:25 -0700
Committer:  Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Thu, 30 Aug 2018 16:02:43 -0700

rcu: Fix typo in rcu_get_gp_kthreads_prio() header comment

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
 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 e1927147a4a5..61c15de884b0 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -181,7 +181,7 @@ module_param(gp_init_delay, int, 0444);
 static int gp_cleanup_delay;
 module_param(gp_cleanup_delay, int, 0444);
 
-/* Retreive RCU kthreads priority for rcutorture */
+/* Retrieve RCU kthreads priority for rcutorture */
 int rcu_get_gp_kthreads_prio(void)
 {
 	return kthread_prio;