From patchwork Wed Nov 4 21:50:31 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Don Brace X-Patchwork-Id: 7554011 Return-Path: X-Original-To: patchwork-linux-scsi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 7D580BEEA4 for ; Wed, 4 Nov 2015 21:54:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9620920604 for ; Wed, 4 Nov 2015 21:54:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A60BD205E7 for ; Wed, 4 Nov 2015 21:54:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965752AbbKDVyZ (ORCPT ); Wed, 4 Nov 2015 16:54:25 -0500 Received: from bby1mta02.pmc-sierra.com ([216.241.235.117]:60719 "EHLO bby1mta02.pmc-sierra.bc.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965397AbbKDVyY (ORCPT ); Wed, 4 Nov 2015 16:54:24 -0500 Received: from bby1mta02.pmc-sierra.bc.ca (localhost.pmc-sierra.bc.ca [127.0.0.1]) by localhost (Postfix) with SMTP id E9AB18E04E8; Wed, 4 Nov 2015 13:54:23 -0800 (PST) Received: from bby1uinfra02-temp.pmc-sierra.bc.ca (bby1uinfra02-temp.pmc-sierra.bc.ca [216.241.226.204]) by bby1mta02.pmc-sierra.bc.ca (Postfix) with ESMTP id C1DF18E04DD; Wed, 4 Nov 2015 13:54:23 -0800 (PST) Received: from [127.0.1.1] (kirk.hou.lab.pmc-sierra.bc.ca [10.238.32.34]) by bby1uinfra02-temp.pmc-sierra.bc.ca (Postfix) with ESMTP id 24E01E06DF; Wed, 4 Nov 2015 13:54:23 -0800 (PST) Subject: [PATCH v2 06/27] hpsa: fix null device issues From: Don Brace To: scott.teel@pmcs.com, Kevin.Barnett@pmcs.com, scott.benesh@pmcs.com, james.bottomley@parallels.com, hch@infradead.org, Justin.Lindley@pmcs.com, elliott@hpe.com Cc: linux-scsi@vger.kernel.org Date: Wed, 04 Nov 2015 15:50:31 -0600 Message-ID: <20151104215031.15472.40572.stgit@brunhilda> In-Reply-To: <20151104214910.15472.23179.stgit@brunhilda> References: <20151104214910.15472.23179.stgit@brunhilda> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pmcs.com; h=subject:from:to:cc:date:message-id:in-reply-to:references:mime-version:content-type:content-transfer-encoding; s=default; bh=Bj3q4BU4cOBY3OvNsyo5oDZSzfFWj4tFsDsS+x/WCMY=; b=IgU4z1t/Y+ebfAx6MfNEcIs9LEtp2VJ0NgkloaZWCYsjmOg2cciEb39+0js51AL057vQrCqGKgzc+N/fHbrFXtERdPHB2A6m3/0C4j44ull8bEubUtjbMsoGi0a4b7+YRnhcKnv7//OEbpL3IuKmSxz7ribDDckuIl/KiLdP/YY= Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID,T_RP_MATCHES_RCVD,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Reviewed-by: Tomas Henzl Reviewed-by: Manoj Kumar Signed-off-by: Don Brace Reviewed-by: Hannes Reinecke --- drivers/scsi/hpsa.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index b64913f..4468166 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -1135,7 +1135,7 @@ static int hpsa_find_target_lun(struct ctlr_info *h, return !found; } -static inline void hpsa_show_dev_msg(const char *level, struct ctlr_info *h, +static void hpsa_show_dev_msg(const char *level, struct ctlr_info *h, struct hpsa_scsi_dev_t *dev, char *description) { if (h == NULL || h->pdev == NULL || h->scsi_host == NULL) @@ -1419,6 +1419,9 @@ static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle, #define DEVICE_CHANGED 1 #define DEVICE_SAME 2 #define DEVICE_UPDATED 3 + if (needle == NULL) + return DEVICE_NOT_FOUND; + for (i = 0; i < haystack_size; i++) { if (haystack[i] == NULL) /* previously removed. */ continue; @@ -1581,6 +1584,8 @@ static void hpsa_figure_phys_disk_ptrs(struct ctlr_info *h, if (!logical_drive->offload_config) continue; for (j = 0; j < ndevices; j++) { + if (dev[j] == NULL) + continue; if (dev[j]->devtype != TYPE_DISK) continue; if (is_logical_dev_addr_mode(dev[j]->scsi3addr)) @@ -1624,6 +1629,8 @@ static void hpsa_update_log_drive_phys_drive_ptrs(struct ctlr_info *h, int i; for (i = 0; i < ndevices; i++) { + if (dev[i] == NULL) + continue; if (dev[i]->devtype != TYPE_DISK) continue; if (!is_logical_dev_addr_mode(dev[i]->scsi3addr)) @@ -1737,8 +1744,11 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, /* Now that h->dev[]->phys_disk[] is coherent, we can enable * any logical drives that need it enabled. */ - for (i = 0; i < h->ndevices; i++) + for (i = 0; i < h->ndevices; i++) { + if (h->dev[i] == NULL) + continue; h->dev[i]->offload_enabled = h->dev[i]->offload_to_be_enabled; + } spin_unlock_irqrestore(&h->devlock, flags); @@ -1763,6 +1773,8 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, sh = h->scsi_host; /* Notify scsi mid layer of any removed devices */ for (i = 0; i < nremoved; i++) { + if (removed[i] == NULL) + continue; if (removed[i]->expose_state & HPSA_SCSI_ADD) { struct scsi_device *sdev = scsi_device_lookup(sh, removed[i]->bus, @@ -1786,18 +1798,18 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, /* Notify scsi mid layer of any added devices */ for (i = 0; i < nadded; i++) { + if (added[i] == NULL) + continue; if (!(added[i]->expose_state & HPSA_SCSI_ADD)) continue; if (scsi_add_device(sh, added[i]->bus, added[i]->target, added[i]->lun) == 0) continue; - hpsa_show_dev_msg(KERN_WARNING, h, added[i], - "addition failed, device not added."); + dev_warn(&h->pdev->dev, "addition failed, device not added."); /* now we have to remove it from h->dev, * since it didn't get added to scsi mid layer */ fixup_botched_add(h, added[i]); - added[i] = NULL; } free_and_out: