From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C9F46C33CAF for ; Thu, 16 Jan 2020 18:10:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A2AAA20684 for ; Thu, 16 Jan 2020 18:10:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579198257; bh=ON6UrWmq47JDT/IgdKlfSIgthc+sRzNmjam0nGQqChg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xvci974c1sbsCBTTdBDhneT7anKmVYdkIz319IiQO84ZlPwh0lZGQ1h38LW6+O4kq NUehmUp/sqhpQiiDXyVJwRCfuGjQbAbI0latj1SRnfDLB6PHwYoDEuKZpZ7IkGiKiG xFvUtoBJGEJ/VCiQTubfJgDR8qvm5r0XvDMUG0s4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2395159AbgAPSK4 (ORCPT ); Thu, 16 Jan 2020 13:10:56 -0500 Received: from mail.kernel.org ([198.145.29.99]:53118 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393109AbgAPRhm (ORCPT ); Thu, 16 Jan 2020 12:37:42 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A855C246C0; Thu, 16 Jan 2020 17:37:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579196261; bh=ON6UrWmq47JDT/IgdKlfSIgthc+sRzNmjam0nGQqChg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xB51agJd95gsQ+efGgEquaZBw14Jt7xt/GG7d6eIoVS54PYnpjbRZtoPEkgSetc5n 636NFhJKigt7zPcFYUJlbdwwQcaIqxvvuoFZUM+JCHsz4wwubqC+vlkyU24wPgkavC Vyq2VEnWZ+36mEJRsz7Ureu+Sj3YKe5NbeCiwTj0= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Marek Szyprowski , Krzysztof Kozlowski , Chanwoo Choi , Daniel Lezcano , Sasha Levin , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 086/251] clocksource/drivers/exynos_mct: Fix error path in timer resources initialization Date: Thu, 16 Jan 2020 12:33:55 -0500 Message-Id: <20200116173641.22137-46-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200116173641.22137-1-sashal@kernel.org> References: <20200116173641.22137-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marek Szyprowski [ Upstream commit b9307420196009cdf18bad55e762ac49fb9a80f4 ] While freeing interrupt handlers in error path, don't assume that all requested interrupts are per-processor interrupts and properly release standard interrupts too. Reported-by: Krzysztof Kozlowski Fixes: 56a94f13919c ("clocksource: exynos_mct: Avoid blocking calls in the cpu hotplug notifier") Signed-off-by: Marek Szyprowski Reviewed-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi Signed-off-by: Daniel Lezcano Signed-off-by: Sasha Levin --- drivers/clocksource/exynos_mct.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index d32248e2ceab..ae3cbaeffd9c 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -563,7 +563,19 @@ static int __init exynos4_timer_resources(struct device_node *np, void __iomem * return 0; out_irq: - free_percpu_irq(mct_irqs[MCT_L0_IRQ], &percpu_mct_tick); + if (mct_int_type == MCT_INT_PPI) { + free_percpu_irq(mct_irqs[MCT_L0_IRQ], &percpu_mct_tick); + } else { + for_each_possible_cpu(cpu) { + struct mct_clock_event_device *pcpu_mevt = + per_cpu_ptr(&percpu_mct_tick, cpu); + + if (pcpu_mevt->evt.irq != -1) { + free_irq(pcpu_mevt->evt.irq, pcpu_mevt); + pcpu_mevt->evt.irq = -1; + } + } + } return err; } -- 2.20.1