greybus: battery: fix panic on operation error

If an operation times out or otherwise returns an error, val->intval
should not be set and an error-code should be returned.

Fixes a panic on unload while receiving -ENOTCONN.

Signed-off-by: Perry Hung <perry@leaflabs.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
1 file changed
tree: 2674bb328c9fd3d7939cd6ef66f91bcba510b045
  1. drivers/