tree 594b62dc81e1c3efa627236786a733511367655a
parent 554e937ec8d75930bc711612208af27961e3dc61
author Stefan Mavrodiev <stefan@olimex.com> 1559911345 +0300
committer Lee Jones <lee.jones@linaro.org> 1562065891 +0100

mfd: rk808: Check pm_power_off pointer

The function pointer pm_power_off may point to function from other
module (PSCI for example). If rk808 is removed, pm_power_off is
overwritten to NULL and the system cannot be powered off.

This patch checks if pm_power_off points to a module function.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>