From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:50434 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758143AbcEFR1T (ORCPT ); Fri, 6 May 2016 13:27:19 -0400 Subject: Patch "clk: bcm2835: fix check of error code returned by devm_ioremap_resource()" has been added to the 4.5-stable tree To: vz@mleia.com, eric@anholt.net, gregkh@linuxfoundation.org, sboyd@codeaurora.org Cc: , From: Date: Fri, 06 May 2016 12:30:12 -0400 Message-ID: <146255221221399@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 clk: bcm2835: fix check of error code returned by devm_ioremap_resource() to the 4.5-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: clk-bcm2835-fix-check-of-error-code-returned-by-devm_ioremap_resource.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 4d3ac6662452060721599a3392bc2f524af984cb Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Sun, 6 Mar 2016 03:21:35 +0200 Subject: clk: bcm2835: fix check of error code returned by devm_ioremap_resource() From: Vladimir Zapolskiy commit 4d3ac6662452060721599a3392bc2f524af984cb upstream. The change fixes potential oops while accessing iomem on invalid address, if devm_ioremap_resource() fails due to some reason. The devm_ioremap_resource() function returns ERR_PTR() and never returns NULL, which makes useless a following check for NULL. Signed-off-by: Vladimir Zapolskiy Fixes: 5e63dcc74b30 ("clk: bcm2835: Add a driver for the auxiliary peripheral clock gates") Reviewed-by: Eric Anholt Signed-off-by: Stephen Boyd Signed-off-by: Greg Kroah-Hartman --- drivers/clk/bcm/clk-bcm2835-aux.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/clk/bcm/clk-bcm2835-aux.c +++ b/drivers/clk/bcm/clk-bcm2835-aux.c @@ -38,8 +38,8 @@ static int bcm2835_aux_clk_probe(struct res = platform_get_resource(pdev, IORESOURCE_MEM, 0); reg = devm_ioremap_resource(dev, res); - if (!reg) - return -ENODEV; + if (IS_ERR(reg)) + return PTR_ERR(reg); onecell = devm_kmalloc(dev, sizeof(*onecell), GFP_KERNEL); if (!onecell) Patches currently in stable-queue which might be from vz@mleia.com are queue-4.5/clk-bcm2835-fix-check-of-error-code-returned-by-devm_ioremap_resource.patch