From: Borislav Petkov <bp@alien8.de>
To: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: x86-ml <x86@kernel.org>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [GIT PULL] microcode loader updates
Date: Mon, 2 Mar 2015 14:29:50 +0100 [thread overview]
Message-ID: <20150302132950.GC17521@pd.tnic> (raw)
In-Reply-To: <20150302130336.GB14850@chrystal.home>
On Mon, Mar 02, 2015 at 02:03:36PM +0100, Quentin Casasnovas wrote:
> So at the last loop iteration for j == i, we'll do kfree(saved_ptr[j])
> which AFAICT hasn't been initialized yet. Using a kcalloc() your first
> allocation for saved_ptr should just work since the memory will be cleared
> and kfree(NULL) doesn't do anything.
You're correct, but(!)...
Practically, this is not a problem because @mc_saved_src being handed
down to save_microcode() is at both call sites initialized up to
mc_saved_count elements and the loop in save_microcode() only inspects
this far.
So actually, this test is not really needed:
if (!mc_saved_src[i]) {
ret = -EINVAL;
goto err;
}
AFAICT and if I'm not missing anything else, of course.
In any case, I'd like to keep this series cleanup-only (well, except
this one) and address your comments later. Don't worry, I haven't
forgotten them - I want to *not* fix everything in one go.
Agreed?
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
--
next prev parent reply other threads:[~2015-03-02 13:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-02 12:34 [GIT PULL] microcode loader updates Borislav Petkov
2015-03-02 13:03 ` Quentin Casasnovas
2015-03-02 13:29 ` Borislav Petkov [this message]
2015-03-02 13:42 ` Quentin Casasnovas
2015-03-02 15:04 ` Borislav Petkov
2015-03-02 15:29 ` Quentin Casasnovas
2015-03-02 17:48 ` Borislav Petkov
2015-03-03 12:55 ` Ingo Molnar
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