Patch "usb: gadget: change len to size_t on alloc_ep_req()" has been added to the 4.4-stable tree

Patch "usb: gadget: change len to size_t on alloc_ep_req()" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: gadget: change len to size_t on alloc_ep_req()

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-gadget-change-len-to-size_t-on-alloc_ep_req.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 69bb99738b5c6d56d2b1a75db9cbb4d187453c1a Mon Sep 17 00:00:00 2001
From: "Felipe F. Tonello" <eu@felipetonello.com>
Date: Mon, 8 Aug 2016 21:30:05 +0100
Subject: usb: gadget: change len to size_t on alloc_ep_req()

From: Felipe F. Tonello <eu@felipetonello.com>

commit 69bb99738b5c6d56d2b1a75db9cbb4d187453c1a upstream.

Length of buffers should be of type size_t whenever possible. Altough
recommended, this change has no real practical change, unless a driver has a
uses a huge or negative buffer size - it might help find these bugs.

Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/gadget/u_f.c |    2 +-
 drivers/usb/gadget/u_f.h |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/usb/gadget/u_f.c
+++ b/drivers/usb/gadget/u_f.c
@@ -13,7 +13,7 @@
 
 #include "u_f.h"
 
-struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
+struct usb_request *alloc_ep_req(struct usb_ep *ep, size_t len, int default_len)
 {
 	struct usb_request      *req;
 
--- a/drivers/usb/gadget/u_f.h
+++ b/drivers/usb/gadget/u_f.h
@@ -48,7 +48,7 @@ struct usb_ep;
 struct usb_request;
 
 /* Requests allocated via alloc_ep_req() must be freed by free_ep_req(). */
-struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len);
+struct usb_request *alloc_ep_req(struct usb_ep *ep, size_t len, int default_len);
 static inline void free_ep_req(struct usb_ep *ep, struct usb_request *req)
 {
 	kfree(req->buf);


Patches currently in stable-queue which might be from eu@felipetonello.com are

queue-4.4/usb-gadget-change-len-to-size_t-on-alloc_ep_req.patch
queue-4.4/usb-gadget-define-free_ep_req-as-universal-function.patch
queue-4.4/usb-gadget-fix-usb_ep_align_maybe-endianness-and-new-usb_ep_align.patch
queue-4.4/usb-gadget-align-buffer-size-when-allocating-for-out-endpoint.patch