From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wi0-f170.google.com ([209.85.212.170]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WSMbc-00025h-TY for linux-mtd@lists.infradead.org; Tue, 25 Mar 2014 08:21:09 +0000 Received: by mail-wi0-f170.google.com with SMTP id bs8so3173440wib.3 for ; Tue, 25 Mar 2014 01:20:46 -0700 (PDT) From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC 15/47] mtd: nand: stm_nand_bch: add compatible page size check Date: Tue, 25 Mar 2014 08:19:32 +0000 Message-Id: <1395735604-26706-16-git-send-email-lee.jones@linaro.org> In-Reply-To: <1395735604-26706-1-git-send-email-lee.jones@linaro.org> References: <1395735604-26706-1-git-send-email-lee.jones@linaro.org> Cc: angus.clark@st.com, kernel@stlinux.com, lee.jones@linaro.org, linux-mtd@lists.infradead.org, pekon@ti.com, computersforpeace@gmail.com, dwmw2@infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Signed-off-by: Lee Jones --- drivers/mtd/nand/stm_nand_bch.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/mtd/nand/stm_nand_bch.c b/drivers/mtd/nand/stm_nand_bch.c index fbcd1b9..93fe835 100644 --- a/drivers/mtd/nand/stm_nand_bch.c +++ b/drivers/mtd/nand/stm_nand_bch.c @@ -29,6 +29,9 @@ #include "stm_nand_regs.h" #include "stm_nand_dt.h" +/* NANDi BCH Controller properties */ +#define NANDI_BCH_SECTOR_SIZE 1024 + /* Bad Block Table (BBT) */ struct nandi_bbt_info { uint32_t bbt_size; /* Size of bad-block table */ @@ -774,6 +777,12 @@ static int stm_nand_bch_probe(struct platform_device *pdev) dev_warn(&pdev->dev, "No timing data available\n"); } + if (mtd->writesize < NANDI_BCH_SECTOR_SIZE) { + dev_err(nandi->dev, + "page size incompatible with BCH ECC sector\n"); + return -EINVAL; + } + return 0; } -- 1.8.3.2