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SubjectRe: [PATCH 5/5] security/selinux/ss: correct size computation
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On Sun, 2009-12-06 at 10:16 +0100, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
>
> The size argument to kcalloc should be the size of desired structure,
> not the pointer to it.
>
> The semantic patch that makes this change is as follows:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @expression@
> expression *x;
> @@
>
> x =
> <+...
> -sizeof(x)
> +sizeof(*x)
> ...+>// </smpl>
>
> Signed-off-by: Julia Lawall <julia@diku.dk>

Acked-by: Eric Paris <eparis@redhat.com>

no real hurry, to get this in, the sizeof() is the same in either case,
but it should be fixed.


>
> ---
> security/selinux/ss/services.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff -u -p a/security/selinux/ss/services.c b/security/selinux/ss/services.c
> --- a/security/selinux/ss/services.c
> +++ b/security/selinux/ss/services.c
> @@ -2555,7 +2555,7 @@ int security_get_classes(char ***classes
> read_lock(&policy_rwlock);
>
> *nclasses = policydb.p_classes.nprim;
> - *classes = kcalloc(*nclasses, sizeof(*classes), GFP_ATOMIC);
> + *classes = kcalloc(*nclasses, sizeof(**classes), GFP_ATOMIC);
> if (!*classes)
> goto out;
>
> @@ -2602,7 +2602,7 @@ int security_get_permissions(char *class
> }
>
> *nperms = match->permissions.nprim;
> - *perms = kcalloc(*nperms, sizeof(*perms), GFP_ATOMIC);
> + *perms = kcalloc(*nperms, sizeof(**perms), GFP_ATOMIC);
> if (!*perms)
> goto out;
>




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