linux-kernel - [RFC 13/42] drivers/mfd: don't check resource with devm_ioremap

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Date:	Fri, 10 May 2013 10:16:58 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	linux-kernel@...r.kernel.org
Cc:	Wolfram Sang <wsa@...-dreams.de>,
	Samuel Ortiz <sameo@...ux.intel.com>
Subject: [RFC 13/42] drivers/mfd: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
---
 drivers/mfd/intel_msic.c |    6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c
index 5be3b5e..b1a9461 100644
--- a/drivers/mfd/intel_msic.c
+++ b/drivers/mfd/intel_msic.c
@@ -413,12 +413,8 @@ static int intel_msic_probe(struct platform_device *pdev)
 	 * Map in the MSIC interrupt tree area in SRAM. This is exposed to
 	 * the clients via intel_msic_irq_read().
 	 */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "failed to get SRAM iomem resource\n");
-		return -ENODEV;
-	}
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	msic->irq_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(msic->irq_base))
 		return PTR_ERR(msic->irq_base);
-- 
1.7.10.4

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