staging: unisys: visorbus: keep the success path on the left

The code was indenting for the successful path and then combining the
error and success path for the rest of the function. Correct it so the
success path is not indented.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>