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 <[email protected]> Cc: [email protected] Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
PJensen · Jul 6, 2012 · 48f8b64 · 48f8b64
1 parent ea3b2ea
commit 48f8b64
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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);