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

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Date:   Mon, 14 Mar 2022 23:15:20 -0500
From:   Steve French <smfrench@...il.com>
To:     Julia Lawall <Julia.Lawall@...ia.fr>
Cc:     kernel-janitors <kernel-janitors@...r.kernel.org>,
        CIFS <linux-cifs@...r.kernel.org>,
        samba-technical <samba-technical@...ts.samba.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/6] cifs: use kzalloc

Which tree should this be merged from?  cifs-2.6.git for-next ... or
do you prefer that these all go together through a different tree

On Sun, Mar 13, 2022 at 11:36 AM Julia Lawall <Julia.Lawall@...ia.fr> wrote:
>
> 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);
>


-- 
Thanks,

Steve