From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:53414 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932777AbbGGRdz (ORCPT ); Tue, 7 Jul 2015 13:33:55 -0400 Subject: Patch "usb: gadget: f_fs: fix check in read operation" has been added to the 4.0-stable tree To: rui.silva@linaro.org, balbi@ti.com, gregkh@linuxfoundation.org Cc: , From: Date: Tue, 07 Jul 2015 10:33:54 -0700 Message-ID: <143629043416234@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled usb: gadget: f_fs: fix check in read operation to the 4.0-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-f_fs-fix-check-in-read-operation.patch and it can be found in the queue-4.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 342f39a6c8d34d638a87b7d5f2156adc4db2585c Mon Sep 17 00:00:00 2001 From: Rui Miguel Silva Date: Wed, 20 May 2015 14:53:33 +0100 Subject: usb: gadget: f_fs: fix check in read operation From: Rui Miguel Silva commit 342f39a6c8d34d638a87b7d5f2156adc4db2585c upstream. when copying to iter the size can be different then the iov count, the check for full iov is wrong and make any read on request which is not the exactly size of iov to return -EFAULT. So, just check the success of the copy. Signed-off-by: Rui Miguel Silva Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/f_fs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -845,7 +845,7 @@ static ssize_t ffs_epfile_io(struct file ret = ep->status; if (io_data->read && ret > 0) { ret = copy_to_iter(data, ret, &io_data->data); - if (unlikely(iov_iter_count(&io_data->data))) + if (!ret) ret = -EFAULT; } } Patches currently in stable-queue which might be from rui.silva@linaro.org are queue-4.0/usb-gadget-f_fs-fix-check-in-read-operation.patch queue-4.0/usb-gadget-f_fs-add-extra-check-before-unregister_gadget_item.patch