nand/denali: Add a page check in denali_read_page & denali_read_page_raw

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=7d8a26fd22c6944cb18a67c5b8d8255608a3ba98
Commit:     7d8a26fd22c6944cb18a67c5b8d8255608a3ba98
Parent:     628bfd4164502fa531b6d284cb6a18e337ec3f20
Author:     Chuanxiao Dong <chuanxiao.dong at intel.com>
AuthorDate: Wed Aug 11 18:19:23 2010 +0800
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Thu Aug 12 11:10:40 2010 +0100

    nand/denali: Add a page check in denali_read_page & denali_read_page_raw
    
    Signed-off-by: Chuanxiao Dong <chuanxiao.dong at intel.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/nand/denali.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 5f7c8c8..017cde4 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1149,6 +1149,13 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 			    INTR_STATUS0__ECC_ERR;
 	bool check_erased_page = false;
 
+	if (page != denali->page) {
+		dev_err(&denali->dev->dev, "IN %s: page %d is not"
+				" equal to denali->page %d, investigate!!",
+				__func__, page, denali->page);
+		BUG();
+	}
+
 	setup_ecc_for_xfer(denali, true, false);
 
 	denali_enable_dma(denali, true);
@@ -1193,6 +1200,13 @@ static int denali_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 	uint32_t irq_status = 0;
 	uint32_t irq_mask = INTR_STATUS0__DMA_CMD_COMP;
 
+	if (page != denali->page) {
+		dev_err(&denali->dev->dev, "IN %s: page %d is not"
+				" equal to denali->page %d, investigate!!",
+				__func__, page, denali->page);
+		BUG();
+	}
+
 	setup_ecc_for_xfer(denali, false, true);
 	denali_enable_dma(denali, true);