linux-kernel - [PATCH 1/4] sparc: bpf_jit: Use kmalloc_array() in bpf_jit

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Date:   Sat, 3 Sep 2016 18:36:35 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     sparclinux@...r.kernel.org,
        Adam Buchbinder <adam.buchbinder@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        "David S. Miller" <davem@...emloft.net>,
        Rabin Vincent <rabin@....in>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: [PATCH 1/4] sparc: bpf_jit: Use kmalloc_array() in bpf_jit_compile()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 3 Sep 2016 17:10:20 +0200

A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/sparc/net/bpf_jit_comp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
index a6d9204..ced1393 100644
--- a/arch/sparc/net/bpf_jit_comp.c
+++ b/arch/sparc/net/bpf_jit_comp.c
@@ -372,7 +372,7 @@ void bpf_jit_compile(struct bpf_prog *fp)
 	if (!bpf_jit_enable)
 		return;
 
-	addrs = kmalloc(flen * sizeof(*addrs), GFP_KERNEL);
+	addrs = kmalloc_array(flen, sizeof(*addrs), GFP_KERNEL);
 	if (addrs == NULL)
 		return;
 
-- 
2.9.3