linux-kernel - [PATCH 31/33] w1: Convert to devm_ioremap

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Date:	Mon, 21 Jan 2013 11:09:24 +0100
From:	Thierry Reding <thierry.reding@...onic-design.de>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	Wolfram Sang <w.sang@...gutronix.de>,
	Evgeniy Polyakov <zbr@...emap.net>
Subject: [PATCH 31/33] w1: Convert to devm_ioremap_resource()

Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
Cc: Evgeniy Polyakov <zbr@...emap.net>
---
 drivers/w1/masters/omap_hdq.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 184dbce..db2390a 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -560,11 +560,9 @@ static int omap_hdq_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	hdq_data->hdq_base = devm_request_and_ioremap(dev, res);
-	if (!hdq_data->hdq_base) {
-		dev_dbg(&pdev->dev, "ioremap failed\n");
-		return -ENOMEM;
-	}
+	hdq_data->hdq_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(hdq_data->hdq_base))
+		return PTR_ERR(hdq_data->hdq_base);
 
 	hdq_data->hdq_usecount = 0;
 	mutex_init(&hdq_data->hdq_mutex);
-- 
1.8.1.1

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