linux-kernel - [PATCH 1/6] cifs: use kzalloc

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Date:   Sat, 12 Mar 2022 11:27:00 +0100
From:   Julia Lawall <Julia.Lawall@...ia.fr>
To:     Steve French <sfrench@...ba.org>
Cc:     kernel-janitors@...r.kernel.org, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/6] cifs: use kzalloc

Use kzalloc instead of kmalloc + memset.

The semantic patch that makes this change is:
(https://coccinelle.gitlabpages.inria.fr/website/)

//<smpl>
@@
expression res, size, flag;
@@
- res = kmalloc(size, flag);
+ res = kzalloc(size, flag);
  ...
- memset(res, 0, size);
//</smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...ia.fr>

---
 fs/cifs/transport.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index eeb1a699bd6f..4ff8e165a180 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -464,13 +464,12 @@ smb_send_rqst(struct TCP_Server_Info *server, int num_rqst,
 		return -EIO;
 	}
 
-	tr_hdr = kmalloc(sizeof(*tr_hdr), GFP_NOFS);
+	tr_hdr = kzalloc(sizeof(*tr_hdr), GFP_NOFS);
 	if (!tr_hdr)
 		return -ENOMEM;
 
 	memset(&cur_rqst[0], 0, sizeof(cur_rqst));
 	memset(&iov, 0, sizeof(iov));
-	memset(tr_hdr, 0, sizeof(*tr_hdr));
 
 	iov.iov_base = tr_hdr;
 	iov.iov_len = sizeof(*tr_hdr);