Re: [PATCH 1/1 v2] xen: set error code on failures

From: Juergen Gross
Date: Thu Dec 08 2016 - 01:58:00 EST


On 05/12/16 09:23, Pan Bian wrote:
> Variable rc is reset in the loop, and its value will be non-negative
> during the second and after repeat of the loop. If it fails to allocate
> memory then, it may return a non-negative integer, which indicates no
> error. This patch fixes the bug, assigning "-ENOMEM" to rc when
> kzalloc() or alloc_page() returns NULL, and removing the initialization
> of rc outside of the loop.
>
> v1 is reviewed by: Juergen Gross <jgross@xxxxxxxx>
>
> Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>

Commited to xen/tip.git for-linus-4.10


Juergen