On Mon, Mar 26, 2012 at 09:26:01AM -0600, Stephen Warren wrote:
> On 03/26/2012 03:45 AM, Viresh Kumar wrote:
> > matrix_keyboard_of_fill_keymap() routines allocates memory using kzalloc()
> > routine. It is freed on call to matrix_keyboard_of_free_keymap() routine.
> >
> > This patch converts these kzalloc() calls to devm_kzalloc() and thus we don't
> > require matrix_keyboard_of_free_keymap() anymore.
> >
> > Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxx>
>
> The Tegra-related parts,
> Acked-by: Stephen Warren <swarren@xxxxxxxxxxxxx>
>
> But that said, Dmitry specifically requested that the devm_* function
> not be used during initial review of this code; IIRC he preferred just
> doing the explicit frees. I can't find a link right now though.
Right, there is no need to haul allocated memory past the building of
the "real" keymap anyway.
Actually I want to change the interface so that we could do something
like:
if (pdata->keymap) {
matrix_keypad_build_keymap(...)
} else {
error = matrix_keypad_build_of_keymap();
if (error)
goto blah;
}
So that one could override OF data with plaform data if needed and no
freeing of intermediate platform-like keymap structure is requited.
Or maybe encapsulate OF parsing directly into matrix_keypad_build_keymap
if passed keymap data is NULL...
Thanks.
--
Dmitry
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