linux-kernel - [PATCH usb v4 16/27] host: ehci-octeon: remove duplicate check on resource

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Message-Id: <1415067694-9473-17-git-send-email-varkabhadram@gmail.com>
Date:	Tue,  4 Nov 2014 07:51:23 +0530
From:	varkabhadram@...il.com
To:	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org
Cc:	balbi@...com, stern@...land.harvard.edu,
	sergei.shtylyov@...entembedded.com, linux-kernel@...r.kernel.org,
	Varka Bhadram <varkabhadram@...il.com>,
	Varka Bhadram <varkab@...c.in>
Subject: [PATCH usb v4 16/27] host: ehci-octeon: remove duplicate check on resource

From: Varka Bhadram <varkabhadram@...il.com>

Sanity check on resource happening with devm_ioremap_resource().

Signed-off-by: Varka Bhadram <varkab@...c.in>
Acked-by: Alan Stern <stern@...land.harvard.edu>
---
 drivers/usb/host/ehci-octeon.c |   12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c
index 9051439..2d0c4bc 100644
--- a/drivers/usb/host/ehci-octeon.c
+++ b/drivers/usb/host/ehci-octeon.c
@@ -106,12 +106,6 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res_mem == NULL) {
-		dev_err(&pdev->dev, "No register space assigned\n");
-		return -ENODEV;
-	}
-
 	/*
 	 * We can DMA from anywhere. But the descriptors must be in
 	 * the lower 4GB.
@@ -125,14 +119,14 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev)
 	if (!hcd)
 		return -ENOMEM;
 
-	hcd->rsrc_start = res_mem->start;
-	hcd->rsrc_len = resource_size(res_mem);
-
+	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	hcd->regs = devm_ioremap_resource(&pdev->dev, res_mem);
 	if (IS_ERR(hcd->regs)) {
 		ret = PTR_ERR(hcd->regs);
 		goto err1;
 	}
+	hcd->rsrc_start = res_mem->start;
+	hcd->rsrc_len = resource_size(res_mem);
 
 	ehci_octeon_start();
 
-- 
1.7.9.5

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