Re: [PATCH 16/46] selinux: Move two assignments for the variable "rc" in filename_trans_read()

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On Sun, Jan 15, 2017 at 10:16 AM, SF Markus Elfring
<elfring@xxxxxxxxxxxxxxxxxxxxx> wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Sat, 14 Jan 2017 18:50:52 +0100
>
> One local variable was set to an error code in two cases before
> a concrete error situation was detected. Thus move the corresponding
> assignments into if branches to indicate a software failure there.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
>  security/selinux/ss/policydb.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)

See previous comments.

> diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
> index e7b882251da8..106a1da1d68a 100644
> --- a/security/selinux/ss/policydb.c
> +++ b/security/selinux/ss/policydb.c
> @@ -1930,16 +1930,17 @@ static int filename_trans_read(struct policydb *p, void *fp)
>                 ft = NULL;
>                 otype = NULL;
>                 name = NULL;
> -
> -               rc = -ENOMEM;
>                 ft = kzalloc(sizeof(*ft), GFP_KERNEL);
> -               if (!ft)
> +               if (!ft) {
> +                       rc = -ENOMEM;
>                         goto out;
> +               }
>
> -               rc = -ENOMEM;
>                 otype = kmalloc(sizeof(*otype), GFP_KERNEL);
> -               if (!otype)
> +               if (!otype) {
> +                       rc = -ENOMEM;
>                         goto out;
> +               }
>
>                 /* length of the path component string */
>                 rc = next_entry(buf, fp, sizeof(u32));
> --
> 2.11.0
>



-- 
paul moore
www.paul-moore.com
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