[U-Boot] nand potential div0

[Ryan J M]

I thought it would be better to check whether chip->ecc.size equal 0
here, I forgot to set ecc.size in board_nand_init() and it trigs a
div0 hang.

driver/mtd/nand/nand_base.c
   2786         /*
   2787          * Set the number of read / write steps for one page
depending on ECC
   2788          * mode
   2789          */
   2790         chip->ecc.steps = mtd->writesize / chip->ecc.size;
   2791         if(chip->ecc.steps * chip->ecc.size != mtd->writesize) {
   2792                 printk(KERN_WARNING "Invalid ecc parameters\n");
   2793                 BUG();
   2794         }
   2795         chip->ecc.total = chip->ecc.steps * chip->ecc.bytes;
   2796



-- 
FIXME if it is wrong.