staging: wfx: remove variable declaration

int ret is uneccessarily declared and 0 assigned to it. Return o
directly instead.

Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Link: https://lore.kernel.org/r/20200310142509.25632-6-kgupta@es.iitr.ac.in


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>