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Re: [Xen-devel] [PATCH] x86/tboot: check return value of dmar_table allocation

To: Hongyan Xia <hx242@xxxxxxx>
From: Jan Beulich <jbeulich@xxxxxxxx>
Date: Tue, 17 Mar 2020 11:17:15 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Lukasz Hawrylko <lukasz.hawrylko@xxxxxxxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Delivery-date: Tue, 17 Mar 2020 10:17:36 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 16.03.2020 18:30, Hongyan Xia wrote:
> From: Hongyan Xia <hongyxia@xxxxxxxxxx>
> 
> The allocation can just return NULL. Return an error value early instead
> of crashing later on.

Not very likely, and we'll be in bigger trouble in such a case, but
yes.

> Signed-off-by: Hongyan Xia <hongyxia@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

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References:
- [Xen-devel] [PATCH] x86/tboot: check return value of dmar_table allocation
  - From: Hongyan Xia

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