linux-kernel - [PATCH 3.13.y-ckt 32/60] usb: gadget: mv_udc_core: fix phy

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Message-Id: <1441155486-26089-33-git-send-email-kamal@canonical.com>
Date:	Tue,  1 Sep 2015 17:57:38 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	Felipe Balbi <balbi@...com>,
	Luis Henriques <luis.henriques@...onical.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13.y-ckt 32/60] usb: gadget: mv_udc_core: fix phy_regs I/O memory leak

3.13.11-ckt26 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexey Khoroshilov <khoroshilov@...ras.ru>

commit 53e20f2eb161fbe9eea28b54dccc870cec94eca2 upstream.

There was an omission in transition to devm_xxx resource handling.
iounmap(udc->phy_regs) were removed, but ioremap() was left
without devm_.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
Fixes: 3517c31a8ece6 ("usb: gadget: mv_udc: use devm_xxx for probe")
Signed-off-by: Felipe Balbi <balbi@...com>
[ luis: backported to 3.16:
  - file rename: drivers/usb/gadget/udc/mv_udc_core.c ->
    drivers/usb/gadget/mv_udc_core.c ]
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>

Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/usb/gadget/mv_udc_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index 104cdbe..f544495 100644
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -2161,7 +2161,7 @@ static int mv_udc_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	udc->phy_regs = ioremap(r->start, resource_size(r));
+	udc->phy_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
 	if (udc->phy_regs == NULL) {
 		dev_err(&pdev->dev, "failed to map phy I/O memory\n");
 		return -EBUSY;
-- 
1.9.1

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