[U-Boot] Possible bug in NAND driver

If we refer to the following code snippet from nand_util.c

rval = nand_read (nand, offset, &read_length, p_buffer);

if (rval != 0) {

printf ("NAND read from offset %llx failed %d\n",

offset, rval);

*length -= left_to_read;

return rval;

}

The above code will return failure even after ECC errors are corrected.

This is because of the following line of code in nand_base.c

return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;

This is in the nand_do_read_ops in nand_bsae.c

I see that changing

if (rval != 0)

to

if (rval != 0 && rval != -EUCLEAN )

solves the problem.

I can submit a patch if required.

Thanks, Sandeep