On Fri, Jun 3, 2011 at 9:03 PM, Daniel Mack <[email protected]> wrote: > This bug was introduced in f8155a40 ("mtd: pxa3xx_nand: rework irq > logic") and causes the PXA3xx NAND controller fail to operate with NAND > flash that has empty pages. According to the comment in this block, the > hardware controller will report a double-bit error for empty pages, > which can and must be ignored. > > This patch restores the original behaviour of the driver. > > Signed-off-by: Daniel Mack <[email protected]> > Cc: Lei Wen <[email protected]> > Cc: Haojian Zhuang <[email protected]> > Cc: David Woodhouse <[email protected]> > Cc: [email protected] > --- > drivers/mtd/nand/pxa3xx_nand.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c > index 0c6ed72..60167d1 100644 > --- a/drivers/mtd/nand/pxa3xx_nand.c > +++ b/drivers/mtd/nand/pxa3xx_nand.c > @@ -687,6 +687,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info > *mtd, > * OOB, ignore such double bit errors > */ > if (is_buf_blank(buf, mtd->writesize)) > + info->retcode = ERR_NONE; > + else > mtd->ecc_stats.failed++; > } > > -- > 1.7.5.1 >
Acked-by: Lei Wen <[email protected]> _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
