linux-kernel - [PATCH] drivers: gpio: Use devm_ioremap

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Date:	Thu, 14 Mar 2013 11:27:29 +0200
From:	Alexandru Gheorghiu <gheorghiuandru@...il.com>
To:	Tony Prisk <linux@...sktech.co.nz>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Alexandru Gheorghiu <gheorghiuandru@...il.com>
Subject: [PATCH] drivers: gpio: Use devm_ioremap_resource function

Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error
handling.

Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@...il.com>
---
 drivers/gpio/gpio-vt8500.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-vt8500.c b/drivers/gpio/gpio-vt8500.c
index 81683ca..eaed4ac 100644
--- a/drivers/gpio/gpio-vt8500.c
+++ b/drivers/gpio/gpio-vt8500.c
@@ -309,10 +309,10 @@ static int vt8500_gpio_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	gpio_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!gpio_base) {
+	gpio_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(gpio_base)) {
 		dev_err(&pdev->dev, "Unable to map GPIO registers\n");
-		return -ENOMEM;
+		return PTR_ERR(gpio_base);
 	}
 
 	ret = vt8500_add_chips(pdev, gpio_base, of_id->data);
-- 
1.7.9.5

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