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Fri, 01 Feb 2019 08:29:41 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x118TZIY014193 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 Feb 2019 08:29:35 GMT Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x118TX1J009720; Fri, 1 Feb 2019 08:29:34 GMT Received: from kadam (/197.157.0.29) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 01 Feb 2019 00:29:33 -0800 Date: Fri, 1 Feb 2019 11:29:22 +0300 From: Dan Carpenter To: Liang Yang Subject: [PATCH 1/3] mtd: rawnand: meson: Fix a limit test in meson_nfc_select_chip() Message-ID: <20190201082922.GC8459@kadam> MIME-Version: 1.0 Content-Disposition: inline X-Mailer: git-send-email haha only kidding User-Agent: Mutt/1.9.4 (2018-02-28) X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9153 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=998 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902010064 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190201_002956_988467_8CA0708E X-CRM114-Status: GOOD ( 16.61 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Boris Brezillon , Richard Weinberger , kernel-janitors@vger.kernel.org, Marek Vasut , linux-mtd@lists.infradead.org, Kevin Hilman , Miquel Raynal , linux-amlogic@lists.infradead.org, Brian Norris , David Woodhouse Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org This test is off by one because the > should be >= and it's also testing against the wrong limit. The MAX_CE_NUM is the maximum size that meson_chip->sels[] is allowed to be but meson_chip->nsels is the actual size. Fixes: 2d570b34b41a ("mtd: rawnand: meson: add support for Amlogic NAND flash controller ") Signed-off-by: Dan Carpenter --- drivers/mtd/nand/raw/meson_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c index e858d58d97b0..94c90be7e1e0 100644 --- a/drivers/mtd/nand/raw/meson_nand.c +++ b/drivers/mtd/nand/raw/meson_nand.c @@ -225,7 +225,7 @@ static void meson_nfc_select_chip(struct nand_chip *nand, int chip) struct meson_nfc *nfc = nand_get_controller_data(nand); int ret, value; - if (chip < 0 || WARN_ON_ONCE(chip > MAX_CE_NUM)) + if (chip < 0 || WARN_ON_ONCE(chip >= meson_chip->nsels)) return; nfc->param.chip_select = meson_chip->sels[chip] ? NAND_CE1 : NAND_CE0; -- 2.17.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic