Spotted By: Andrew Morton <akpm@osdl.org>

drivers/scsi/scsi_transport_spi.c: In function `spi_dv_retrain':
drivers/scsi/scsi_transport_spi.c:393: warning: `period' might be used uninitialized in this function
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>