linux-kernel - Re: [PATCH] iommu/ipmmu-vmsa: Fix crash on early domain free

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Message-ID: <20181107160341.pfpukoqhyhapfzpn@8bytes.org>
Date:   Wed, 7 Nov 2018 17:03:41 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Robin Murphy <robin.murphy@....com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Linux IOMMU <iommu@...ts.linux-foundation.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] iommu/ipmmu-vmsa: Fix crash on early domain free

On Wed, Nov 07, 2018 at 04:50:40PM +0100, Geert Uytterhoeven wrote:
> It only got triggered by the combination of commits 6c2fb2ea76361da9
> ("of/device: Set bus DMA mask as appropriate") and b4ebe6063204da58
> ("dma-direct: implement complete bus_dma_mask handling"), which is being
> fixed by "of/device: Really only set bus DMA mask when
> appropriate" (https://patchwork.kernel.org/patch/10670177/).

Okay, but the bug is triggered since 6c2fb2ea76361da9, so I took this
one for the fixes-tag.

Thanks,

	Joerg