regulator: add check index of wm8350->pmic.pdev[]

Ensure that reg is within the bounds of array wm8350->pmic.pdev[].

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
1 file changed