greybus: gpio: fix error handling

Make sure to propagate any errors detected up the call chain.

This specifically means that we will detect failed connection init,
something which is now handled more gracefully by greybus core.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
1 file changed
tree: a7978cacb10a7a01c22786d5075f577135f47cdd
  1. drivers/