From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e35.co.us.ibm.com (e35.co.us.ibm.com [32.97.110.153]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e35.co.us.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 54F162C00AD for ; Wed, 15 May 2013 13:35:09 +1000 (EST) Received: from /spool/local by e35.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 14 May 2013 21:35:07 -0600 Received: from d03relay03.boulder.ibm.com (d03relay03.boulder.ibm.com [9.17.195.228]) by d03dlp01.boulder.ibm.com (Postfix) with ESMTP id AB9031FF001B for ; Tue, 14 May 2013 21:29:58 -0600 (MDT) Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay03.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r4F3Z5PK104594 for ; Tue, 14 May 2013 21:35:05 -0600 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r4F3Z3uT019098 for ; Tue, 14 May 2013 21:35:05 -0600 From: Gavin Shan To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 01/22] powerpc/eeh: Enhance converting EEH dev Date: Wed, 15 May 2013 11:34:37 +0800 Message-Id: <1368588898-16224-2-git-send-email-shangw@linux.vnet.ibm.com> In-Reply-To: <1368588898-16224-1-git-send-email-shangw@linux.vnet.ibm.com> References: <1368588898-16224-1-git-send-email-shangw@linux.vnet.ibm.com> Cc: Gavin Shan List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Under some special circumstances, the EEH device doesn't have the associated device tree node or PCI device. The patch enhances those functions converting EEH device to device tree node or PCI device accordingly to avoid unnecessary system crash. Signed-off-by: Gavin Shan --- arch/powerpc/include/asm/eeh.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index a80e32b4..e32c3c5 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -95,12 +95,12 @@ struct eeh_dev { static inline struct device_node *eeh_dev_to_of_node(struct eeh_dev *edev) { - return edev->dn; + return edev ? edev->dn : NULL; } static inline struct pci_dev *eeh_dev_to_pci_dev(struct eeh_dev *edev) { - return edev->pdev; + return edev ? edev->pdev : NULL; } /* -- 1.7.5.4