[PATCH] net: bluetooth: Use kzalloc instead of kmalloc/memset

From: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
To: marcel@holtmann.org
Cc: johan.hedberg@gmail.com, luiz.dentz@gmail.com,
	davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, linux-bluetooth@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Jiapeng Chong <jiapeng.chong@linux.alibaba.com>,
	Abaci Robot <abaci@linux.alibaba.com>
Subject: [PATCH] net: bluetooth: Use kzalloc instead of kmalloc/memset
Date: Mon, 17 Oct 2022 11:04:21 +0800	[thread overview]
Message-ID: <20221017030421.69108-1-jiapeng.chong@linux.alibaba.com> (raw)

Use kzalloc rather than duplicating its implementation, which makes code
simple and easy to understand.

./net/bluetooth/hci_conn.c:2038:6-13: WARNING: kzalloc should be used for cp, instead of kmalloc/memset.

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2406
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
---
 net/bluetooth/hci_conn.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 5d6ee5075642..495de21d52cd 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -2035,13 +2035,12 @@ int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
 	if (hci_dev_test_and_set_flag(hdev, HCI_PA_SYNC))
 		return -EBUSY;
 
-	cp = kmalloc(sizeof(*cp), GFP_KERNEL);
+	cp = kzalloc(sizeof(*cp), GFP_KERNEL);
 	if (!cp) {
 		hci_dev_clear_flag(hdev, HCI_PA_SYNC);
 		return -ENOMEM;
 	}
 
-	memset(cp, 0, sizeof(*cp));
 	cp->sid = sid;
 	cp->addr_type = dst_type;
 	bacpy(&cp->addr, dst);
-- 
2.20.1.7.g153144c

