On 09/13/2012 04:14 PM, Kevin Hilman wrote: > AnilKumar Ch <anilku...@ti.com> writes: > >> Move pm_runtime_enable/disable calls to c_can.c driver. Current >> implementation is such that platform driver is doing pm_runtime >> enable/disable and core driver is doing put_sync/get_sync. >> >> PM runtime calls should be invoked if there is a valid device >> pointer from platform driver so moving enable/disable calls >> to core driver. >> >> Signed-off-by: AnilKumar Ch <anilku...@ti.com> >> --- >> Incorporated Kevin's comments on "can: c_can: Add runtime PM >> support to Bosch C_CAN/D_CAN controller" patch. > > This looks better, but in addition, you can get rid of the > runtime PM helper functions you added (the ones that check for > priv->device) and call the pm_runtime_get/put APIs directly.
But priv->device might be NULL. AFAICS pm_runtime_get() is not safe to be called with a NULL pointer. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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