[PATCH 1/2] Input: gpio-keys: do not reference platform_data after .probe exits

Grant Likely grant.likely at secretlab.ca
Mon Jul 18 13:15:27 EDT 2011


On Mon, Jul 18, 2011 at 11:02 AM, Dmitry Torokhov
<dmitry.torokhov at gmail.com> wrote:
> On Monday, July 18, 2011 09:45:07 AM Shawn Guo wrote:
>> The patch makes a copy of platform data into driver data, so that any
>> reference to platform_data after .probe exits can be avoided.
>
> And why is this beneficial? I am of the opinion that platform data should
> stay on (and be accessed through a const pointer to ensure that the driver
> will not alter it).

Because when using the device tree, there is no platform_data.

g.



More information about the linux-arm-kernel mailing list