linux-kernel - Re: [PATCH v2] i2c: tegra: Wait for config load atomically while in ISR

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20210111214020.GE17475@kunai>
Date:   Mon, 11 Jan 2021 22:40:20 +0100
From:   Wolfram Sang <wsa@...nel.org>
To:     Mikko Perttunen <mperttunen@...dia.com>
Cc:     ldewangan@...dia.com, digetx@...il.com, thierry.reding@...il.com,
        jonathanh@...dia.com, linux-i2c@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH v2] i2c: tegra: Wait for config load atomically while in
 ISR

On Mon, Jan 11, 2021 at 06:08:32PM +0200, Mikko Perttunen wrote:
> Upon a communication error, the interrupt handler can call
> tegra_i2c_disable_packet_mode. This causes a sleeping poll to happen
> unless the current transaction was marked atomic. Fix this by
> making the poll happen atomically if we are in an IRQ.
> 
> This matches the behavior prior to the patch mentioned
> in the Fixes tag.
> 
> Fixes: ede2299f7101 ("i2c: tegra: Support atomic transfers")
> Cc: stable@...r.kernel.org
> Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>

Applied to for-current, thanks!


Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)