Commit-ID: d9eba768839ac24e47606af36e50c14f10c2211c
Gitweb: http://git.kernel.org/tip/d9eba768839ac24e47606af36e50c14f10c2211c
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Thu, 14 May 2015 15:35:43 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 15 Jul 2015 14:47:14 -0700
rcutorture: Better bounds checking for n_barrier_cbs
A negative value for rcutorture.n_barrier_cbs can pass a negative value
to the memory allocator, so this commit instead causes rcu_barrier()
testing to be disabled in this case.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/rcutorture.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 59e3268..7e29a32 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1507,7 +1507,7 @@ static int rcu_torture_barrier_init(void)
int i;
int ret;
- if (n_barrier_cbs == 0)
+ if (n_barrier_cbs <= 0)
return 0;
if (cur_ops->call == NULL || cur_ops->cb_barrier == NULL) {
pr_alert("%s" TORTURE_FLAG
--
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