From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
-------------------
This is a commit scheduled for the next v2.6.34 longterm release.
http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
If you see a problem with using this for longterm, please comment.
-------------------
commit 48f8b641297df49021093763a3271119a84990a2 upstream.
The intent here was clearly to set result to true if the 0x40000000 flag
was set. But instead there was a | vs & typo and we always set result
to true.
Artem: check the spec at
wiki.laptop.org/images/5/5c/88ALP01_Datasheet_July_2007.pdf
and this fix looks correct.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
Signed-off-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
drivers/mtd/nand/cafe_nand.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index e5a9f9ccea60..882d01910804 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -104,7 +104,7 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
static int cafe_device_ready(struct mtd_info *mtd)
{
struct cafe_priv *cafe = mtd->priv;
- int result = !!(cafe_readl(cafe, NAND_STATUS) | 0x40000000);
+ int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000);
uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
cafe_writel(cafe, irqs, NAND_IRQ);
--
1.8.5.2
--
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