Re: [patch] smack: opt_dentry is never null in insmack_d_instantiate()

From: James Morris
Date: Tue Jun 01 2010 - 21:56:58 EST


On Tue, 1 Jun 2010, Dan Carpenter wrote:

> This patch removes some unneeded code for if opt_dentry is null because
> that can never happen.
>
> The function dereferences "opt_dentry" earlier when it checks
> "if (opt_dentry->d_parent == opt_dentry) {". That code was added in
> 2008.
>
> This function called from security_d_instantiate(). I checked all the
> places which call security_d_instantiate() and dentry is always non-null.
> I also checked the selinux version of this hook and there is a comment
> which says that dentry should be non-null if called from
> d_instantiate().
>
> Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>


Applied to
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6#next

--
James Morris
<jmorris@xxxxxxxxx>
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