linux-kernel - Re: [PATCH v5 1/3] phy: amlogic: phy-meson-gxl-usb2: fix shared reset controller use

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: <d1be20fb0e724598d697fba97f79d75b8646b7ee.camel@pengutronix.de>
Date:   Mon, 13 Dec 2021 10:16:10 +0100
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Amjad Ouled-Ameur <aouledameur@...libre.com>, khilman@...libre.com
Cc:     balbi@...nel.org, jbrunet@...libre.com,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH v5 1/3] phy: amlogic: phy-meson-gxl-usb2: fix shared
 reset controller use

On Sun, 2021-12-12 at 21:18 +0100, Amjad Ouled-Ameur wrote:
> Use reset_control_rearm() call if an error occurs in case
> phy_meson_gxl_usb2_init() fails after reset() has been called ; or in case
> phy_meson_gxl_usb2_exit() is called i.e the resource is no longer used
> and the reset line may be triggered again by other devices.
> 
> reset_control_rearm() keeps use of triggered_count sane in the reset
> framework. Therefore, use of reset_control_reset() on shared reset line
> should be balanced with reset_control_rearm().
> 
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@...libre.com>
> Reported-by: Jerome Brunet <jbrunet@...libre.com>

Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp