From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:40736 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751235AbdAWOgn (ORCPT ); Mon, 23 Jan 2017 09:36:43 -0500 Subject: Patch "mtd: nand: lpc32xx: fix invalid error handling of a requested irq" has been added to the 4.9-stable tree To: vz@mleia.com, boris.brezillon@free-electrons.com, gregkh@linuxfoundation.org, slemieux.tyco@gmail.com Cc: , From: Date: Mon, 23 Jan 2017 15:36:04 +0100 Message-ID: <1485182164154211@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 mtd: nand: lpc32xx: fix invalid error handling of a requested irq to the 4.9-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: mtd-nand-lpc32xx-fix-invalid-error-handling-of-a-requested-irq.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From cf9e1672a66c49ed8903c01b4c380a2f2dc91b40 Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Mon, 5 Dec 2016 03:47:10 +0200 Subject: mtd: nand: lpc32xx: fix invalid error handling of a requested irq From: Vladimir Zapolskiy commit cf9e1672a66c49ed8903c01b4c380a2f2dc91b40 upstream. Semantics of NR_IRQS is different on machines with SPARSE_IRQ option disabled or enabled, in the latter case IRQs are allocated starting at least from the value specified by NR_IRQS and going upwards, so the check of (irq >= NR_IRQ) to decide about an error code returned by platform_get_irq() is completely invalid, don't attempt to overrule irq subsystem in the driver. The change fixes LPC32xx NAND MLC driver initialization on boot. Fixes: 8cb17b5ed017 ("irqchip: Add LPC32xx interrupt controller driver") Signed-off-by: Vladimir Zapolskiy Acked-by: Sylvain Lemieux Signed-off-by: Boris Brezillon Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/lpc32xx_mlc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -776,7 +776,7 @@ static int lpc32xx_nand_probe(struct pla init_completion(&host->comp_controller); host->irq = platform_get_irq(pdev, 0); - if ((host->irq < 0) || (host->irq >= NR_IRQS)) { + if (host->irq < 0) { dev_err(&pdev->dev, "failed to get platform irq\n"); res = -EINVAL; goto err_exit3; Patches currently in stable-queue which might be from vz@mleia.com are queue-4.9/mtd-nand-lpc32xx-fix-invalid-error-handling-of-a-requested-irq.patch queue-4.9/arm-dts-imx31-fix-clock-control-module-interrupts-description.patch queue-4.9/arm-dts-imx31-move-ccm-device-node-to-aips2-bus-devices.patch