lkml.org 
[lkml]   [2006]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC] rfkill - Add support for input key to control wireless radio
From
Date
On Sun, 2006-12-03 at 19:36 +0100, Ivo van Doorn wrote:
> +static int rfkill_open(struct input_dev *dev)
> +{
> + ((struct rfkill_key*)(dev->private))->open_count++;
> + return 0;
> +}

Hi,

this open_count thing smells fishy to me; what are the locking rules for
it? What guarantees that the readers of it don't get the value changed
underneath them between looking at the value and doing whatever action
depends on it's value ?

Greetings,
Arjan van de Ven

--
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org

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

\
 
 \ /
  Last update: 2006-12-03 20:23    [W:0.094 / U:7.552 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site