Re: [PATCH] input: psmouse: fix input_dev leak in lifebook driver

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To: Dmitry Torokhov <dmitry.torokhov@...>
Cc: <linux-input@...>, <linux-kernel@...>
Date: Wednesday, January 16, 2008 - 1:58 pm

On Tue, 15 Jan 2008 17:04:01 -0500
Dmitry Torokhov <dmitry.torokhov@gmail.com> wrote:


Hi Dmitry,
 
There's one additional patch, I don't know if you saw it; the subject
was "check return value of input_register_device() in hil_ptr.c's init".


Also, I've found myself needing to provide my own device_attribute for
the OLPC psmouse driver; I couldn't use PSMOUSE_DEFINE_ATTR(), as its
set_helper callback calls psmouse_disable.

static DEVICE_ATTR(powered, S_IWUSR | S_IRUGO, hgpk_show_powered,
                hgpk_set_powered);

Unfortunately, in order to not be racy, hgpk_set_powered needs to
deal with psmouse_mutex.  Which method of dealing with this would
you prefer?  I could either make psmouse_mutex no longer static,
provide psmouse_mutex locking functions (declared in psmouse.h), or
put psmouse_mutex into 'struct psmouse'.  Or, if you have any other
ideas..

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Re: [PATCH] input: psmouse: fix input_dev leak in lifebook d..., Andres Salomon, (Wed Jan 16, 1:58 pm)