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Date:   Thu, 9 Aug 2018 18:18:06 +0200
From:   Borislav Petkov <bp@alien8.de>
To:     Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc:     linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
        tony.luck@intel.com, x86@kernel.org
Subject: Re: [PATCH 2/2] x86/MCE/AMD: Skip creating kobjects with NULL names
Message-ID: <20180809161806.GB20928@nazgul.tnic>
References: <20180809140834.59264-1-Yazen.Ghannam@amd.com>
 <20180809140834.59264-2-Yazen.Ghannam@amd.com>
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On Thu, Aug 09, 2018 at 09:08:34AM -0500, Yazen Ghannam wrote:
> From: Yazen Ghannam <yazen.ghannam@amd.com>
> 
> During mce_threshold_create_device() data structures are allocated for
> each CPUs MCA banks and thresholding blocks. These data structures are
> used to save information related to AMD's MCA Error Thresholding
> feature. The structures are used in the thresholding interrupt handler,
> and they are exposed to the user through sysfs. The sysfs interface has
> user-friendly names for each bank.
> 
> However, errors in mce_threshold_create_device() will cause all the data
> structures to be deallocated. This will break the thresholding interrupt
> handler since it depends on these structures.

Same argument as before: if our init fails in some fashion, we should
not be running the interrupt handler.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--