linux-kernel - [PATCH 4/7] MFD: ASIC3: use resource_size macro instead of local variable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1244219467-32136-5-git-send-email-philipp.zabel@gmail.com>
Date:	Fri,  5 Jun 2009 18:31:04 +0200
From:	Philipp Zabel <philipp.zabel@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Philipp Zabel <philipp.zabel@...il.com>
Subject: [PATCH 4/7] MFD: ASIC3: use resource_size macro instead of local variable

This should make the code a little bit easier to read.

Signed-off-by: Philipp Zabel <philipp.zabel@...il.com>
---
 drivers/mfd/asic3.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index ebe8893..d5dd0df 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -623,7 +623,6 @@ static int __init asic3_probe(struct platform_device *pdev)
 	struct asic3 *asic;
 	struct resource *mem;
 	unsigned long clksel;
-	int map_size;
 	int ret = 0;
 
 	asic = kzalloc(sizeof(struct asic3), GFP_KERNEL);
@@ -643,8 +642,7 @@ static int __init asic3_probe(struct platform_device *pdev)
 		goto out_free;
 	}
 
-	map_size = mem->end - mem->start + 1;
-	asic->mapping = ioremap(mem->start, map_size);
+	asic->mapping = ioremap(mem->start, resource_size(mem));
 	if (!asic->mapping) {
 		ret = -ENOMEM;
 		dev_err(asic->dev, "Couldn't ioremap\n");
@@ -654,7 +652,7 @@ static int __init asic3_probe(struct platform_device *pdev)
 	asic->irq_base = pdata->irq_base;
 
 	/* calculate bus shift from mem resource */
-	asic->bus_shift = 2 - (map_size >> 12);
+	asic->bus_shift = 2 - (resource_size(mem) >> 12);
 
 	clksel = 0;
 	asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL), clksel);
-- 
1.6.3.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/