linux-kernel - Re: [PATCH V2 2/2] Input: misc: introduce palmas-pwrbutton

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 for Android: free password hash cracker in your pocket

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

Message-ID: <00FC9A978A94B7418C33AFAE8A35ED49DF07A2@DFLE09.ent.ti.com>
Date:	Thu, 21 Aug 2014 17:32:00 +0000
From:	"Murphy, Dan" <dmurphy@...com>
To:	"Menon, Nishanth" <nm@...com>, Dmitry Torokhov <dtor@...l.ru>,
	"Dmitry Torokhov" <dmitry.torokhov@...il.com>
CC:	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH V2 2/2] Input: misc: introduce palmas-pwrbutton

On 08/21/2014 12:19 PM, Menon, Nishanth wrote:
> On 08/21/2014 11:59 AM, Murphy, Dan wrote:
> [...]
> Ooops.. missed answering one addition statement:
> 
>>> +	of_property_read_u32(np, "ti,palmas-long-press-seconds", &val);
>>
>> Probably should check the return to make sure the value exists and that is is
>> within an expected range.
> It is an optional parameter and may not exist in dt. when it does
> exist, the logic tries to do a best match (this is the for loop in the
> logic just below).
> 

The issue is val might be returned as a negative which will then proceed to
set the config->long_press_time_val to the lowest time value which then overrides
your initial setting of config->long_press_time_val = ARRAY_SIZE(lpk_times) - 1;

Dan

-- 
------------------
Dan Murphy
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/