[3.13.y-ckt stable] Patch "usb: gadget: mv_udc_core: fix phy_regs I/O memory leak" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    usb: gadget: mv_udc_core: fix phy_regs I/O memory leak

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11-ckt26.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From a44cd8c3db5ee2a26ca919a7fc9f16d01078f3ed Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov at ispras.ru>
Date: Sun, 19 Jul 2015 23:13:28 +0700
Subject: usb: gadget: mv_udc_core: fix phy_regs I/O memory leak

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 at ispras.ru>
Fixes: 3517c31a8ece6 ("usb: gadget: mv_udc: use devm_xxx for probe")
Signed-off-by: Felipe Balbi <balbi at ti.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 at canonical.com>

Signed-off-by: Kamal Mostafa <kamal at canonical.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