rcutorture: Fix rcu_torture_cbflood() memory leak

Commit 38706bc5a29a (rcutorture: Add callback-flood test) vmalloc()ed
a bunch of RCU callbacks, but failed to free them.  This commit fixes
that oversight.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 240fa9094f830cdc56565cb2ceb8233984564ac3..4d559baf06e0c7171a7a86acbeed9926fc8c9d7d 100644 (file)
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -812,6 +812,7 @@ rcu_torture_cbflood(void *arg)
                cur_ops->cb_barrier();
                stutter_wait("rcu_torture_cbflood");
        } while (!torture_must_stop());
+       vfree(rhp);
        torture_kthread_stopping("rcu_torture_cbflood");
        return 0;
 }