[MTD] OneNAND: Return an error if a read timeout occurs

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=9d03280129e84f8cdfd83f84803a4548e3bf697d
Commit:     9d03280129e84f8cdfd83f84803a4548e3bf697d
Parent:     10b7a2bd6bf3510cbb5977a44d8822f085738729
Author:     Adrian Hunter <hunter.programmer at gmail.com>
AuthorDate: Wed Jan 10 07:51:26 2007 +0200
Committer:  Kyungmin Park <kyungmin.park at samsung.com>
CommitDate: Thu Jan 18 10:59:44 2007 +0900

    [MTD] OneNAND: Return an error if a read timeout occurs
    
    If OneNAND is operating within specification, all operations should easily be
    completed within the 20 millisecond timeout.
    This patch faithlessly adds a check for the timeout and returns an error in
    that case.
    
    Signed-off-by: Adrian Hunter <ext-adrian.hunter at nokia.com>
    Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 drivers/mtd/onenand/onenand_base.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index d0f3118..ce1cbdc 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -333,6 +333,9 @@ static int onenand_wait(struct mtd_info *mtd, int state)
 			} else if (ecc & ONENAND_ECC_1BIT_ALL)
 				mtd->ecc_stats.corrected++;
 		}
+	} else if (state == FL_READING) {
+		printk(KERN_ERR "onenand_wait: read timeout! ctrl=0x%04x intr=0x%04x\n", ctrl, interrupt);
+		return -EIO;
 	}
 
 	return 0;