rcu: Fix synchronize_sched_expedited() type error for "s"

The type of "s" has been "long" rather than the correct "unsigned long"
for quite some time.  This commit fixes this type error.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index f79a1c646846..094ed8ff82b4 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3386,7 +3386,7 @@ static int synchronize_sched_expedited_cpu_stop(void *data)
 void synchronize_sched_expedited(void)
 {
         int cpu;
-        long s;
+        unsigned long s;
         struct rcu_node *rnp;
         struct rcu_state *rsp = &rcu_sched_state;