[tip:core/rcu] rcutorture: Replace multi-instance kzalloc() with kcalloc()

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Commit-ID:  68a675d433fbaa8a39aa9a63695da68192b70e3c
Gitweb:     https://git.kernel.org/tip/68a675d433fbaa8a39aa9a63695da68192b70e3c
Author:     Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Fri, 1 Dec 2017 14:26:56 -0800
Committer:  Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Tue, 20 Feb 2018 16:21:55 -0800

rcutorture: Replace multi-instance kzalloc() with kcalloc()

This commit replaces array-allocation calls to kzalloc() with
equivalent calls to kcalloc().

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
 kernel/rcu/rcutorture.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 308e6fdbced8..b4a201dcbc55 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1557,11 +1557,10 @@ static int rcu_torture_barrier_init(void)
 	atomic_set(&barrier_cbs_count, 0);
 	atomic_set(&barrier_cbs_invoked, 0);
 	barrier_cbs_tasks =
-		kzalloc(n_barrier_cbs * sizeof(barrier_cbs_tasks[0]),
+		kcalloc(n_barrier_cbs, sizeof(barrier_cbs_tasks[0]),
 			GFP_KERNEL);
 	barrier_cbs_wq =
-		kzalloc(n_barrier_cbs * sizeof(barrier_cbs_wq[0]),
-			GFP_KERNEL);
+		kcalloc(n_barrier_cbs, sizeof(barrier_cbs_wq[0]), GFP_KERNEL);
 	if (barrier_cbs_tasks == NULL || !barrier_cbs_wq)
 		return -ENOMEM;
 	for (i = 0; i < n_barrier_cbs; i++) {
@@ -1799,7 +1798,7 @@ rcu_torture_init(void)
 	if (firsterr)
 		goto unwind;
 	if (nfakewriters > 0) {
-		fakewriter_tasks = kzalloc(nfakewriters *
+		fakewriter_tasks = kcalloc(nfakewriters,
 					   sizeof(fakewriter_tasks[0]),
 					   GFP_KERNEL);
 		if (fakewriter_tasks == NULL) {
@@ -1814,7 +1813,7 @@ rcu_torture_init(void)
 		if (firsterr)
 			goto unwind;
 	}
-	reader_tasks = kzalloc(nrealreaders * sizeof(reader_tasks[0]),
+	reader_tasks = kcalloc(nrealreaders, sizeof(reader_tasks[0]),
 			       GFP_KERNEL);
 	if (reader_tasks == NULL) {
 		VERBOSE_TOROUT_ERRSTRING("out of memory");
--
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