linux-kernel - [RESEND PATCH] Bluetooth: hci_conn: Use kzalloc for kmalloc+memset

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <Y3lCNjPGoVJT9Y35@qemulion>
Date:   Sun, 20 Nov 2022 02:23:10 +0530
From:   Deepak R Varma <drv@...lo.com>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RESEND PATCH] Bluetooth: hci_conn: Use kzalloc for kmalloc+memset

Use of kzalloc preferred over combination of kmalloc & memset. Issue
identified using coccicheck.

Signed-off-by: Deepak R Varma <drv@...lo.com>
---

Notes: No changes. Just a gentle reminder for review and feedback.


 net/bluetooth/hci_conn.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 7a59c4487050..287d313aa312 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -824,11 +824,10 @@ static int hci_le_terminate_big(struct hci_dev *hdev, u8 big, u8 bis)

 	bt_dev_dbg(hdev, "big 0x%2.2x bis 0x%2.2x", big, bis);

-	d = kmalloc(sizeof(*d), GFP_KERNEL);
+	d = kzalloc(sizeof(*d), GFP_KERNEL);
 	if (!d)
 		return -ENOMEM;

-	memset(d, 0, sizeof(*d));
 	d->big = big;
 	d->bis = bis;

@@ -861,11 +860,10 @@ static int hci_le_big_terminate(struct hci_dev *hdev, u8 big, u16 sync_handle)

 	bt_dev_dbg(hdev, "big 0x%2.2x sync_handle 0x%4.4x", big, sync_handle);

-	d = kmalloc(sizeof(*d), GFP_KERNEL);
+	d = kzalloc(sizeof(*d), GFP_KERNEL);
 	if (!d)
 		return -ENOMEM;

-	memset(d, 0, sizeof(*d));
 	d->big = big;
 	d->sync_handle = sync_handle;

--
2.34.1