[tip: core/rcu] rcutorture: Small code cleanups

[tip-bot2 for Paul E. McKenney]

The following commit has been merged into the core/rcu branch of tip:

Commit-ID:     293b93d66f149a9bd124aae195f048268e11870c
Gitweb:        https://git.kernel.org/tip/293b93d66f149a9bd124aae195f048268e11870c
Author:        Paul E. McKenney <paulmck@xxxxxxxxxx>
AuthorDate:    Wed, 23 Sep 2020 16:46:36 -07:00
Committer:     Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Fri, 06 Nov 2020 17:13:55 -08:00

rcutorture: Small code cleanups

The rcu_torture_cleanup() function fails to NULL out the reader_tasks
pointer after freeing it and its fakewriter_tasks loop has redundant
braces.  This commit therefore cleans these up.

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
 kernel/rcu/rcutorture.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 4391d2f..e7d52fd 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -2496,13 +2496,13 @@ rcu_torture_cleanup(void)
 			torture_stop_kthread(rcu_torture_reader,
 					     reader_tasks[i]);
 		kfree(reader_tasks);
+		reader_tasks = NULL;
 	}
 
 	if (fakewriter_tasks) {
-		for (i = 0; i < nfakewriters; i++) {
+		for (i = 0; i < nfakewriters; i++)
 			torture_stop_kthread(rcu_torture_fakewriter,
 					     fakewriter_tasks[i]);
-		}
 		kfree(fakewriter_tasks);
 		fakewriter_tasks = NULL;
 	}