linux-kernel - [PATCH 1/5] mtd: brcmnand: Fix pointer type-cast in brcmnand

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Message-ID: <1443808606-21203-2-git-send-email-anup.patel@broadcom.com>
Date:	Fri, 2 Oct 2015 23:26:42 +0530
From:	Anup Patel <anup.patel@...adcom.com>
To:	<linux-arm-kernel@...ts.infradead.org>
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"Catalin Marinas" <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	"David Woodhouse" <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	Ray Jui <rjui@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	"Florian Fainelli" <f.fainelli@...il.com>,
	Pramod KUMAR <pramodku@...adcom.com>,
	"Vikram Prakash" <vikramp@...adcom.com>,
	Sandeep Tripathy <tripathy@...adcom.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-mtd@...ts.infradead.org>,
	<bcm-kernel-feedback-list@...adcom.com>,
	Anup Patel <anup.patel@...adcom.com>
Subject: [PATCH 1/5] mtd: brcmnand: Fix pointer type-cast in brcmnand_write()

We should always type-cast pointer to "long" or "unsigned long"
because size of pointer is same as machine word size. This will
avoid pointer type-cast issues on both 32bit and 64bit systems.

This patch fixes pointer type-cast issue in brcmnand_write()
as-per above info.

Signed-off-by: Anup Patel <anup.patel@...adcom.com>
Reviewed-by: Vikram Prakash <vikramp@...adcom.com>
Reviewed-by: Ray Jui <rjui@...adcom.com>
Reviewed-by: Scott Branden <sbranden@...adcom.com>
---
 drivers/mtd/nand/brcmnand/brcmnand.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index fddb795..4cba03d 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -1544,9 +1544,9 @@ static int brcmnand_write(struct mtd_info *mtd, struct nand_chip *chip,
 
 	dev_dbg(ctrl->dev, "write %llx <- %p\n", (unsigned long long)addr, buf);
 
-	if (unlikely((u32)buf & 0x03)) {
+	if (unlikely((unsigned long)buf & 0x03)) {
 		dev_warn(ctrl->dev, "unaligned buffer: %p\n", buf);
-		buf = (u32 *)((u32)buf & ~0x03);
+		buf = (u32 *)((unsigned long)buf & ~0x03);
 	}
 
 	brcmnand_wp(mtd, 0);
-- 
1.9.1

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