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authorDan Carpenter <dan.carpenter@oracle.com>2012-06-09 16:08:25 (GMT)
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-07-06 13:27:13 (GMT)
commit48f8b641297df49021093763a3271119a84990a2 (patch)
treeb993fd13765b70a2dac2df1bdeeb05eb462e83c9 /drivers/mtd
parentea3b2ea24ef0f2ef9c6795b19cff456195b6728a (diff)
downloadlinux-48f8b641297df49021093763a3271119a84990a2.tar.xz
mtd: cafe_nand: fix an & vs | mistake
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@oracle.com> Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/cafe_nand.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 41371ba..f3f6cfe 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -102,7 +102,7 @@ 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);