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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 26F5FC10F0E for ; Mon, 15 Apr 2019 19:08:10 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E016520880 for ; Mon, 15 Apr 2019 19:08:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bMJ6gdQf"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="051yNZl6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E016520880 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=yaiwaeEHHdcPC5DSGGYW3I+RPEGjHAl/GGlqGzoL0jU=; b=bMJ6gdQfKmwJG7 lPDBYCuk7LTRvsR7fVJ6QRxBFCbi1n+flGkciLBKxvi5oUGltug6CKbaH//Exv2kV5z2ioqlI9Zsa yIVOSKYhPop/UYiS63oUejtwsMbNXcjIdPFuaRz+1Pwk0UPujXbdo69QLX91mWyKCNKF34PN2Bx0e /XsblgJtJXqME2Le9E3ucoklZGgHP/xQVcHsHwA2tHHwKGG9wz9lYT3Ig05i6WottRKRl8ZFWEgO8 jo/4V43bumVMoNkPUko0AatYHebzw4lcClDvjrHLpjeIxikFwJuhji9SYT0vbQJwqEIT7RwSLKF9G Hc7SGvAKBJqozGKKb7cg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hG6xX-0003yR-Nm; Mon, 15 Apr 2019 19:08:03 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hG6xL-0003kK-F7 for linux-arm-kernel@lists.infradead.org; Mon, 15 Apr 2019 19:07:52 +0000 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id ACBAB218FE; Mon, 15 Apr 2019 19:07:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555355271; bh=NVvtnQW6+4IY5A1Rbha4/7epwBJhAGchxQSymarG8d8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=051yNZl65NIrBlHCYCqoO1KddgvaIe/q9BXnnLOY7AmU1Quo/sZI/FfNZcwiSuIJM fX8LDnH+V09GlHzT8/2tvOAgFZOFfzAJPZEhmQYm6kI96VtwviuADXvY48mOjkzidR 54qP0UeALISF6PAMQGmVGCxuxPTQPwC23y43biac= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Subject: [PATCH 4.19 074/101] genirq: Initialize request_mutex if CONFIG_SPARSE_IRQ=n Date: Mon, 15 Apr 2019 20:59:12 +0200 Message-Id: <20190415183744.374157389@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190415183740.341577907@linuxfoundation.org> References: <20190415183740.341577907@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190415_120751_518189_A7E37B8D X-CRM114-Status: UNSURE ( 9.32 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kefeng Wang , Marc Zyngier , Greg Kroah-Hartman , Mukesh Ojha , stable@vger.kernel.org, Thomas Gleixner , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Kefeng Wang commit e8458e7afa855317b14915d7b86ab3caceea7eb6 upstream. When CONFIG_SPARSE_IRQ is disable, the request_mutex in struct irq_desc is not initialized which causes malfunction. Fixes: 9114014cf4e6 ("genirq: Add mutex to irq desc to serialize request/free_irq()") Signed-off-by: Kefeng Wang Signed-off-by: Thomas Gleixner Reviewed-by: Mukesh Ojha Cc: Marc Zyngier Cc: Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20190404074512.145533-1-wangkefeng.wang@huawei.com Signed-off-by: Greg Kroah-Hartman --- kernel/irq/irqdesc.c | 1 + 1 file changed, 1 insertion(+) --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -554,6 +554,7 @@ int __init early_irq_init(void) alloc_masks(&desc[i], node); raw_spin_lock_init(&desc[i].lock); lockdep_set_class(&desc[i].lock, &irq_desc_lock_class); + mutex_init(&desc[i].request_mutex); desc_set_defaults(i, &desc[i], node, NULL, NULL); } return arch_early_irq_init(); _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel