From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932395AbWCKDsA (ORCPT ); Fri, 10 Mar 2006 22:48:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932400AbWCKDsA (ORCPT ); Fri, 10 Mar 2006 22:48:00 -0500 Received: from zproxy.gmail.com ([64.233.162.203]:12271 "EHLO zproxy.gmail.com") by vger.kernel.org with ESMTP id S932395AbWCKDr7 (ORCPT ); Fri, 10 Mar 2006 22:47:59 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:date:from:to:cc:subject:message-id:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; b=lvRe0dBP8ZJoIIrIFZxyc6WwZQmg0T/TvAM/6oKng7rn1XwgOcNxt4xINFdvdAicWUCYTd/ab7jhaH4NDvBSH1hvlwFFsT/F9A7ULcIDaDQjHFrsfLMqaAgf4lyx9hq/WFS3dYkKZMwnMfrLMqwG2bk1toql8grsF9CkGE3RwMc= Date: Sat, 11 Mar 2006 12:47:54 +0900 From: Tejun Heo To: Adrian Bunk Cc: jgarzik@pobox.com, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ahci: fix NULL pointer dereference detected by Coverity Message-ID: <20060311034754.GA31198@htj.dyndns.org> References: <20060310193414.GT21864@stusta.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060310193414.GT21864@stusta.de> User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Fix NULL pointer dereference detected by the Coverity checker. Kill dev -> pdev -> dev conversion while at it. Signed-off-by: Tejun Heo Cc: Adrian Bunk --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -778,23 +778,17 @@ static irqreturn_t ahci_interrupt (int i struct ata_queued_cmd *qc; qc = ata_qc_from_tag(ap, ap->active_tag); if (!ahci_host_intr(ap, qc)) - if (ata_ratelimit()) { - struct pci_dev *pdev = - to_pci_dev(ap->host_set->dev); - dev_printk(KERN_WARNING, &pdev->dev, + if (ata_ratelimit()) + dev_printk(KERN_WARNING, host_set->dev, "unhandled interrupt on port %u\n", i); - } VPRINTK("port %u\n", i); } else { VPRINTK("port %u (no irq)\n", i); - if (ata_ratelimit()) { - struct pci_dev *pdev = - to_pci_dev(ap->host_set->dev); - dev_printk(KERN_WARNING, &pdev->dev, + if (ata_ratelimit()) + dev_printk(KERN_WARNING, host_set->dev, "interrupt on disabled port %u\n", i); - } } irq_ack |= (1 << i);