From patchwork Mon Jun 6 17:00:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 9158929 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4BB6A60573 for ; Mon, 6 Jun 2016 17:25:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3CF342833E for ; Mon, 6 Jun 2016 17:25:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3155D20072; Mon, 6 Jun 2016 17:25:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A54A820072 for ; Mon, 6 Jun 2016 17:25:52 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1b9yH0-0007gY-Bx; Mon, 06 Jun 2016 17:25:10 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1b9y3i-0007yA-Be for linux-arm-kernel@lists.infradead.org; Mon, 06 Jun 2016 17:11:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2014; h=Date:Sender:Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References:In-Reply-To; bh=Ais8eIU/pMC8scHRJE1UwErMJk1kNuTDMAfj7bHVf+o=; b=gQkOo26xee+kWAu0YCyv7IkP7Rf5aBILyh4+wFI47BAl8kGGowB53FLQ+DkVcixpWLPI8n/N+Fn0Zs4zDaWnn51mAAAs5x/bP8EB/Iuu2f8VkBSfUgetSkiIhuhZAE0MD9QBlVCwhj+8OHntLnKwoO9i/9xE8kvW20TsBZxZPKY=; Received: from [2001:4d48:ad52:3201:b4eb:e902:622d:f2f0] (port=42318 helo=e0050434b2927.dyn.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLSv1:DHE-RSA-AES128-SHA:128) (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1b9xsr-0000I4-F6; Mon, 06 Jun 2016 18:00:13 +0100 Received: from rmk by e0050434b2927.dyn.armlinux.org.uk with local (Exim 4.82) (envelope-from ) id 1b9xso-0003t4-Tj; Mon, 06 Jun 2016 18:00:10 +0100 In-Reply-To: <20160606164129.GM1041@n2100.armlinux.org.uk> References: <20160606164129.GM1041@n2100.armlinux.org.uk> From: Russell King To: kexec@lists.infradead.org,linux-arm-kernel@lists.infradead.org Subject: [PATCH kexec-tools v2 17/32] arm: return proper error for missing crash kernel MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Mon, 06 Jun 2016 18:00:10 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160606_101127_398911_F95B6DF4 X-CRM114-Status: GOOD ( 10.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Pratyush Anand , Baoquan He Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Return the proper error code (ENOCRASHKERNEL) for a missing crash kernel region in /proc/iomem, so the error handling in kexec.c can print the appropriate message. Reviewed-by: Pratyush Anand Signed-off-by: Russell King --- kexec/arch/arm/kexec-zImage-arm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kexec/arch/arm/kexec-zImage-arm.c b/kexec/arch/arm/kexec-zImage-arm.c index d85ab9b..4755f06 100644 --- a/kexec/arch/arm/kexec-zImage-arm.c +++ b/kexec/arch/arm/kexec-zImage-arm.c @@ -451,7 +451,7 @@ int zImage_arm_load(int argc, char **argv, const char *buf, off_t len, * No crash kernel memory reserved. We cannot do more * but just bail out. */ - return -1; + return ENOCRASHKERNEL; } base = start; } else {