linux-kernel - [PATCH 2/7] lib/mpi: use kcalloc in mpi

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Date:   Wed, 12 May 2021 22:04:09 +0800
From:   Hongbo Li <herbert.tencent@...il.com>
To:     keyrings@...r.kernel.org, linux-crypto@...r.kernel.org,
        herbert@...dor.apana.org.au, dhowells@...hat.com,
        jarkko@...nel.org, tianjia.zhang@...ux.alibaba.com,
        herberthbli@...cent.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 2/7] lib/mpi: use kcalloc in mpi_resize

From: Hongbo Li <herberthbli@...cent.com>

We should set the additional space to 0 in mpi_resize().
So use kcalloc() instead of kmalloc_array().

Signed-off-by: Hongbo Li <herberthbli@...cent.com>
---
 lib/mpi/mpiutil.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/mpi/mpiutil.c b/lib/mpi/mpiutil.c
index 3c63710..e6c4b31 100644
--- a/lib/mpi/mpiutil.c
+++ b/lib/mpi/mpiutil.c
@@ -148,7 +148,7 @@ int mpi_resize(MPI a, unsigned nlimbs)
 		return 0;	/* no need to do it */
 
 	if (a->d) {
-		p = kmalloc_array(nlimbs, sizeof(mpi_limb_t), GFP_KERNEL);
+		p = kcalloc(nlimbs, sizeof(mpi_limb_t), GFP_KERNEL);
 		if (!p)
 			return -ENOMEM;
 		memcpy(p, a->d, a->alloced * sizeof(mpi_limb_t));
-- 
1.8.3.1