From 00c004c070f22a47063de4ff2a5638fce1f94d95 Mon Sep 17 00:00:00 2001
From: Kenneth Lee <klee33@uw.edu>
Date: Thu, 18 Aug 2022 22:42:55 -0700
Subject: [PATCH] ceph: Use kcalloc for allocating multiple elements

[ Upstream commit aa1d627207cace003163dee24d1c06fa4e910c6b ]

Prefer using kcalloc(a, b) over kzalloc(a * b) as this improves
semantics since kcalloc is intended for allocating an array of memory.

Signed-off-by: Kenneth Lee <klee33@uw.edu>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Stable-dep-of: 5bd76b8de5b7 ("ceph: fix NULL pointer dereference for req->r_session")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ceph/caps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index ce6a858e765a..668be87ffee6 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2335,7 +2335,7 @@ retry:
 		struct ceph_mds_request *req;
 		int i;
 
-		sessions = kzalloc(max_sessions * sizeof(s), GFP_KERNEL);
+		sessions = kcalloc(max_sessions, sizeof(s), GFP_KERNEL);
 		if (!sessions) {
 			err = -ENOMEM;
 			goto out;