staging: slicoss: handle errors from slic_config_get
staging: slicoss: handle errors from slic_config_get

slic_config_get() can fail. Change the return type from void to
int and handle the error in slic_card_init(). So now, instead of
silently failing (and then timing out waiting for the config data),
the driver will fail loudly at request time.

Signed-off-by: David Matlack <7d7cb7bd0e87669f317fbd9ca96acd8c73fac513@gmail.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs