[3.16.y-ckt stable] Patch "usb: musb: stuff leak of struct usb_hcd" has been added to staging queue

[Luis Henriques]

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

    usb: musb: stuff leak of struct usb_hcd

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?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt5.

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

------

>From 572aaa97f5672a4879965c04c8d553949ee1047e Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
Date: Thu, 11 Dec 2014 18:14:18 +0100
Subject: usb: musb: stuff leak of struct usb_hcd

commit 68693b8ea4e284c46bff919ac62bd9ccdfdbb6ba upstream.

since the split of host+gadget mode in commit 74c2e9360058 ("usb: musb:
factor out hcd initalization") we leak the usb_hcd struct. We call now
musb_host_cleanup() which does basically usb_remove_hcd() and also sets
the hcd variable to NULL. Doing so makes the finall call to
musb_host_free() basically a nop and the usb_hcd remains around for ever
without anowner.
This patch drops that NULL assignment for that reason.

Fixes: 74c2e9360058 ("usb: musb: factor out hcd initalization")
Cc: Daniel Mack <zonque at gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
Signed-off-by: Felipe Balbi <balbi at ti.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/usb/musb/musb_host.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index eb06291a40c8..0ae35ab5c392 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2662,7 +2662,6 @@ void musb_host_cleanup(struct musb *musb)
 	if (musb->port_mode == MUSB_PORT_MODE_GADGET)
 		return;
 	usb_remove_hcd(musb->hcd);
-	musb->hcd = NULL;
 }

 void musb_host_free(struct musb *musb)
--
2.1.4