From patchwork Mon Oct 19 22:39:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamal Mostafa X-Patchwork-Id: 532581 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) by ozlabs.org (Postfix) with ESMTP id 7242C140273; Tue, 20 Oct 2015 09:40:05 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1ZoJ63-0001Ng-1K; Mon, 19 Oct 2015 22:40:03 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1ZoJ5D-0000pN-9A for kernel-team@lists.ubuntu.com; Mon, 19 Oct 2015 22:39:11 +0000 Received: from 1.general.kamal.us.vpn ([10.172.68.52] helo=fourier) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1ZoJ5D-0003Lx-2r; Mon, 19 Oct 2015 22:39:11 +0000 Received: from kamal by fourier with local (Exim 4.82) (envelope-from ) id 1ZoJ5A-0003jz-Rr; Mon, 19 Oct 2015 15:39:08 -0700 From: Kamal Mostafa To: Cristina Opriceana Subject: [3.19.y-ckt stable] Patch "iio: industrialio-buffer: Fix iio_buffer_poll return value" has been added to staging queue Date: Mon, 19 Oct 2015 15:39:08 -0700 Message-Id: <1445294348-14349-1-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 X-Extended-Stable: 3.19 Cc: Kamal Mostafa , kernel-team@lists.ubuntu.com, Jonathan Cameron X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.14 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: kernel-team-bounces@lists.ubuntu.com This is a note to let you know that I have just added a patch titled iio: industrialio-buffer: Fix iio_buffer_poll return value to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.8-ckt8. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 3d92fcde0d9a965808c8bb84ee6b6a6907004cbe Mon Sep 17 00:00:00 2001 From: Cristina Opriceana Date: Mon, 3 Aug 2015 13:37:40 +0300 Subject: iio: industrialio-buffer: Fix iio_buffer_poll return value commit 1bdc0293901cbea23c6dc29432e81919d4719844 upstream. Change return value to 0 if no device is bound since unsigned int cannot support negative error codes. Fixes: f18e7a068 ("iio: Return -ENODEV for file operations if the device has been unregistered") Signed-off-by: Cristina Opriceana Signed-off-by: Jonathan Cameron Signed-off-by: Kamal Mostafa --- drivers/iio/industrialio-buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1 diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index f971f79..25c68de 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -93,7 +93,7 @@ unsigned int iio_buffer_poll(struct file *filp, struct iio_buffer *rb = indio_dev->buffer; if (!indio_dev->info) - return -ENODEV; + return 0; poll_wait(filp, &rb->pollq, wait); if (iio_buffer_data_available(rb))