linux-kernel - [PATCH v2 1/4] dw_dmac: don't check resource with devm_ioremap

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Message-Id: <1370435206-13474-2-git-send-email-andriy.shevchenko@linux.intel.com>
Date:	Wed,  5 Jun 2013 15:26:43 +0300
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Vinod Koul <vinod.koul@...el.com>, linux-kernel@...r.kernel.org,
	spear-devel <spear-devel@...t.st.com>, viresh.kumar@...aro.org,
	Arnd Bergmann <arnd@...db.de>, Felipe Balbi <balbi@...com>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v2 1/4] dw_dmac: 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: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
Acked-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/dma/dw_dmac.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 724083d..2b65ba6 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1667,14 +1667,11 @@ static int dw_probe(struct platform_device *pdev)
 	int			err;
 	int			i;
 
-	io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!io)
-		return -EINVAL;
-
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
 		return irq;
 
+	io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	regs = devm_ioremap_resource(&pdev->dev, io);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
-- 
1.8.2.rc0.22.gb3600c3

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