[PATCH] dc395x [5/6] - check for device

After searching for a device to free, only free it if it was found.

drivers/scsi/dc395x.c

@@ -4833,6 +4833,7 @@ void dc395x_slave_destroy(struct scsi_device *scsi_device)
 {
 	struct AdapterCtlBlk *acb = (struct AdapterCtlBlk *)scsi_device->host->hostdata;
 	struct DeviceCtlBlk *dcb = find_dcb(acb, scsi_device->id, scsi_device->lun);
+	if (dcb)
 		adapter_remove_and_free_device(acb, dcb);
 }