From: Su Hui <suhui@nfschina.com>
Date: Tue, 22 Apr 2025 01:51:45 +0000 (+0800)
Subject: rcuscale: using kcalloc() to relpace kmalloc()
X-Git-Tag: v6.16-rc1~204^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bed3af437f38f9a7a8b8a7de153a421f023c6e0b;p=thirdparty%2Fkernel%2Fstable.git

rcuscale: using kcalloc() to relpace kmalloc()

It's safer to using kcalloc() because it can prevent overflow
problem.

Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
---

diff --git a/kernel/rcu/rcuscale.c b/kernel/rcu/rcuscale.c
index 0f3059b1b80d0..b521d04559927 100644
--- a/kernel/rcu/rcuscale.c
+++ b/kernel/rcu/rcuscale.c
@@ -762,7 +762,7 @@ kfree_scale_thread(void *arg)
 		}
 
 		for (i = 0; i < kfree_alloc_num; i++) {
-			alloc_ptr = kmalloc(kfree_mult * sizeof(struct kfree_obj), GFP_KERNEL);
+			alloc_ptr = kcalloc(kfree_mult, sizeof(struct kfree_obj), GFP_KERNEL);
 			if (!alloc_ptr)
 				return -ENOMEM;