[3.16.y-ckt stable] Patch "phy: twl4030-usb: Relase usb phy on unload" has been added to the 3.16.y-ckt tree

[Luis Henriques]

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

    phy: twl4030-usb: Relase usb phy on unload

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt25.

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

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

---8<------------------------------------------------------------

>From 1d2830258b1f2861ab07f9e86fb41eea9b7b9614 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony at atomide.com>
Date: Mon, 30 Nov 2015 21:39:53 -0800
Subject: phy: twl4030-usb: Relase usb phy on unload

commit b241d31ef2f6a289d33dcaa004714b26e06f476f upstream.

Otherwise rmmod omap2430; rmmod phy-twl4030-usb; modprobe omap2430
will try to use a non-existing phy and oops:

Unable to handle kernel paging request at virtual address b6f7c1f0
...
[<c048a284>] (devm_usb_get_phy_by_node) from [<bf0758ac>]
(omap2430_musb_init+0x44/0x2b4 [omap2430])
[<bf0758ac>] (omap2430_musb_init [omap2430]) from [<bf055ec0>]
(musb_init_controller+0x194/0x878 [musb_hdrc])

Cc: Bin Liu <b-liu at ti.com>
Cc: Felipe Balbi <balbi at ti.com>
Cc: Kishon Vijay Abraham I <kishon at ti.com>
Cc: NeilBrown <neil at brown.name>
Signed-off-by: Tony Lindgren <tony at atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon at ti.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/phy/phy-twl4030-usb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index a2b877911b0f..28c706059ec1 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -776,6 +776,7 @@ static int twl4030_usb_remove(struct platform_device *pdev)
 	struct twl4030_usb *twl = platform_get_drvdata(pdev);
 	int val;

+	usb_remove_phy(&twl->phy);
 	pm_runtime_get_sync(twl->dev);
 	cancel_delayed_work(&twl->id_workaround_work);
 	device_remove_file(twl->dev, &dev_attr_vbus);