linux-kernel - [PATCH] mtd: nand: ratelimit ecc error message

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Date:	Thu, 12 May 2016 12:52:03 +0300
From:	Roger Quadros <rogerq@...com>
To:	<boris.brezillon@...e-electrons.com>
CC:	<dwmw2@...radead.org>, <nm@...com>, <linux-kernel@...r.kernel.org>,
	Roger Quadros <rogerq@...com>
Subject: [PATCH] mtd: nand: ratelimit ecc error message

If NAND has gone bad or filesystem gets corrupted then the console can
get flooded with ecc error messages. Ratelimit the error message.

Reported-by: Nishanth Menon <nm@...com>
Signed-off-by: Roger Quadros <rogerq@...com>
---
 drivers/mtd/nand/nand_bch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c
index b585bae..321dc0d 100644
--- a/drivers/mtd/nand/nand_bch.c
+++ b/drivers/mtd/nand/nand_bch.c
@@ -97,7 +97,7 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
 					errloc[i]);
 		}
 	} else if (count < 0) {
-		printk(KERN_ERR "ecc unrecoverable error\n");
+		pr_err_ratelimited("ecc unrecoverable error\n");
 		count = -EBADMSG;
 	}
 	return count;
-- 
2.7.4