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From: Dan Carpenter <dan.carpenter@oracle.com>
To: kernel-janitors@vger.kernel.org
Subject: [patch] usb: phy: msm: fix bug in probe()
Date: Mon, 19 May 2014 20:35:19 +0000	[thread overview]
Message-ID: <20140519203519.GB5671@mwanda> (raw)

My previous patch introduced a bug which prevented this driver from
loading.  devm_ioremap_resource() has a call to
devm_request_mem_region() which will fail because the address space is
shared between this PHY driver and CI device controller driver.

Fixes: 10f0577aa5cb ('usb: phy: msm: change devm_ioremap() to devm_ioremap_resource()')
Reported-by:"Ivan T. Ivanov" <iivanov@mm-sol.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 4f88174..ced34f3 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -1586,9 +1586,11 @@ static int msm_otg_probe(struct platform_device *pdev)
 				      np ? "alt_core" : "usb_hs_core_clk");
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	motg->regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(motg->regs))
-		return PTR_ERR(motg->regs);
+	if (!res)
+		return -EINVAL;
+	motg->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!motg->regs)
+		return -ENOMEM;
 
 	/*
 	 * NOTE: The PHYs can be multiplexed between the chipidea controller

             reply	other threads:[~2014-05-19 20:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-19 20:35 Dan Carpenter [this message]
2014-05-20  7:19 ` [patch] usb: phy: msm: fix bug in probe() Ivan T. Ivanov
2014-05-20  8:25 ` Dan Carpenter

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