From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:41239 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754501AbbGaRsP (ORCPT ); Fri, 31 Jul 2015 13:48:15 -0400 Subject: Patch "clk: ti: dra7-atl-clock: Fix possible ERR_PTR dereference" has been added to the 4.1-stable tree To: k.kozlowski@samsung.com, gregkh@linuxfoundation.org, sboyd@codeaurora.org Cc: , From: Date: Fri, 31 Jul 2015 10:48:14 -0700 Message-ID: <1438364894109245@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: ti: dra7-atl-clock: Fix possible ERR_PTR dereference to the 4.1-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-ti-dra7-atl-clock-fix-possible-err_ptr-dereference.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From e0cdcda508f110b7ec190dc7c5eb2869ba73a535 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 13 May 2015 15:54:40 +0900 Subject: clk: ti: dra7-atl-clock: Fix possible ERR_PTR dereference From: Krzysztof Kozlowski commit e0cdcda508f110b7ec190dc7c5eb2869ba73a535 upstream. of_clk_get_from_provider() returns ERR_PTR on failure. The dra7-atl-clock driver was not checking its return value and immediately used it in __clk_get_hw(). __clk_get_hw() dereferences supplied clock, if it is not NULL, so in that case it would dereference an ERR_PTR. Fixes: 9ac33b0ce81f ("CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)") Signed-off-by: Krzysztof Kozlowski Signed-off-by: Stephen Boyd Signed-off-by: Greg Kroah-Hartman --- drivers/clk/ti/clk-dra7-atl.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/clk/ti/clk-dra7-atl.c +++ b/drivers/clk/ti/clk-dra7-atl.c @@ -252,6 +252,11 @@ static int of_dra7_atl_clk_probe(struct } clk = of_clk_get_from_provider(&clkspec); + if (IS_ERR(clk)) { + pr_err("%s: failed to get atl clock %d from provider\n", + __func__, i); + return PTR_ERR(clk); + } cdesc = to_atl_desc(__clk_get_hw(clk)); cdesc->cinfo = cinfo; Patches currently in stable-queue which might be from k.kozlowski@samsung.com are queue-4.1/clk-ti-dra7-atl-clock-fix-possible-err_ptr-dereference.patch queue-4.1/clocksource-exynos_mct-avoid-blocking-calls-in-the-cpu-hotplug-notifier.patch