staging: unisys: visorbus: error_store convert ret to err

The ret variable was only returning an error, so changing it to err to
be more consistent across the file.

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