linux-kernel - [PATCH 0/2] driver core: Fixes related to device links

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-next>] [day] [month] [year] [list]

Date:   Tue, 12 Feb 2019 13:01:13 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Lukas Wunner <lukas@...ner.de>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Lucas Stach <l.stach@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: [PATCH 0/2] driver core: Fixes related to device links

Hi Greg at al,

These fix two issues on top of the recent device links material in
driver-core/driver-core-next.  

The first one fixes a race condition that may trigger when
__pm_runtime_set_status() is used incorrectly (that is, when it is
called with PM-runtime enabled for the target device and working).

The second one fixes a supplier PM-runtime usage counter imbalance
resulting from adding and removing (e.g. in the error code path) a
stateless device link to it from within the consumer driver's probe
callback.

Please refer to the patch changelogs for details.

Cheers,
Rafael