Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI changes from James Bottomley:
 "This is a small set of updates which missed the first pull.  It's more
  msix updates, some iscsi and qla4xxx fixes, we also have some string
  null termination fixes a return value fix and a couple of pm8001
  firmware fixes.

  Just a note, we do have a couple of bug fixes coming under separate
  cover, but they don't have to be part of the merge window"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  iscsi class: Fix freeing of skb in get host error path
  scsi: fix u14-34f printk format warnings
  pm8001: fix pm8001_store_update_fw
  pm8001: Fix erratic calculation in update_flash
  pm8001: Update MAINTAINERS list
  libiscsi: return new error code when nop times out
  iscsi class: fix get_host_stats return code when not supported
  iscsi class: fix get_host_stats error handling
  qla4xxx: fix get_host_stats error propagation
  qla4xxx: check the return value of dma_alloc_coherent()
  scsi: qla4xxx: ql4_mbx.c: Cleaning up missing null-terminate in conjunction with strncpy
  scsi: qla4xxx: ql4_os.c: Cleaning up missing null-terminate in conjunction with strncpy
  qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()
  pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()

MAINTAINERS

@@ -7059,6 +7059,7 @@ F:	drivers/scsi/pmcraid.*
 PMC SIERRA PM8001 DRIVER
 M:	xjtuwjp@gmail.com
 M:	lindar_liu@usish.com
+L:	pmchba@pmcs.com
 L:	linux-scsi@vger.kernel.org
 S:	Supported
 F:	drivers/scsi/pm8001/

drivers/scsi/libiscsi.c

@@ -2097,7 +2097,7 @@ static void iscsi_check_transport_timeouts(unsigned long data)
 				  conn->ping_timeout, conn->recv_timeout,
 				  last_recv, conn->last_ping, jiffies);
 		spin_unlock(&session->frwd_lock);
-		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+		iscsi_conn_failure(conn, ISCSI_ERR_NOP_TIMEDOUT);
 		return;
 	}
 

drivers/scsi/pm8001/pm8001_ctl.c

@@ -526,18 +526,19 @@ static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
 {
 	struct pm8001_ioctl_payload	*payload;
 	DECLARE_COMPLETION_ONSTACK(completion);
-	u8		*ioctlbuffer = NULL;
-	u32		length = 0;
-	u32		ret = 0;
+	u8		*ioctlbuffer;
+	u32		ret;
+	u32		length = 1024 * 5 + sizeof(*payload) - 1;
+
+	if (pm8001_ha->fw_image->size > 4096) {
+		pm8001_ha->fw_status = FAIL_FILE_SIZE;
+		return -EFAULT;
+	}
 
-	length = 1024 * 5 + sizeof(*payload) - 1;
 	ioctlbuffer = kzalloc(length, GFP_KERNEL);
-	if (!ioctlbuffer)
+	if (!ioctlbuffer) {
+		pm8001_ha->fw_status = FAIL_OUT_MEMORY;
 		return -ENOMEM;
-	if ((pm8001_ha->fw_image->size <= 0) ||
-	    (pm8001_ha->fw_image->size > 4096)) {
-		ret = FAIL_FILE_SIZE;
-		goto out;
 	}
 	payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
 	memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
@@ -547,6 +548,10 @@ static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
 	payload->minor_function = 0x1;
 	pm8001_ha->nvmd_completion = &completion;
 	ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
+	if (ret) {
+		pm8001_ha->fw_status = FAIL_OUT_MEMORY;
+		goto out;
+	}
 	wait_for_completion(&completion);
 out:
 	kfree(ioctlbuffer);
@@ -557,35 +562,31 @@ static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
 {
 	struct pm8001_ioctl_payload	*payload;
 	DECLARE_COMPLETION_ONSTACK(completion);
-	u8		*ioctlbuffer = NULL;
-	u32		length = 0;
+	u8		*ioctlbuffer;
 	struct fw_control_info	*fwControl;
-	u32		loopNumber, loopcount = 0;
-	u32		sizeRead = 0;
 	u32		partitionSize, partitionSizeTmp;
-	u32		ret = 0;
-	u32		partitionNumber = 0;
+	u32		loopNumber, loopcount;
 	struct pm8001_fw_image_header *image_hdr;
+	u32		sizeRead = 0;
+	u32		ret = 0;
+	u32		length = 1024 * 16 + sizeof(*payload) - 1;
 
-	length = 1024 * 16 + sizeof(*payload) - 1;
+	if (pm8001_ha->fw_image->size < 28) {
+		pm8001_ha->fw_status = FAIL_FILE_SIZE;
+		return -EFAULT;
+	}
 	ioctlbuffer = kzalloc(length, GFP_KERNEL);
-	image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
-	if (!ioctlbuffer)
+	if (!ioctlbuffer) {
+		pm8001_ha->fw_status = FAIL_OUT_MEMORY;
 		return -ENOMEM;
-	if (pm8001_ha->fw_image->size < 28) {
-		ret = FAIL_FILE_SIZE;
-		goto out;
 	}
-
+	image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
 	while (sizeRead < pm8001_ha->fw_image->size) {
 		partitionSizeTmp =
 			*(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
 		partitionSize = be32_to_cpu(partitionSizeTmp);
-		loopcount = (partitionSize + HEADER_LEN)/IOCTL_BUF_SIZE;
-		if (loopcount % IOCTL_BUF_SIZE)
-			loopcount++;
-		if (loopcount == 0)
-			loopcount++;
+		loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
+					IOCTL_BUF_SIZE);
 		for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
 			payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
 			payload->length = 1024*16;
@@ -617,18 +618,18 @@ static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
 
 		pm8001_ha->nvmd_completion = &completion;
 		ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
-		if (ret)
-			break;
+		if (ret) {
+			pm8001_ha->fw_status = FAIL_OUT_MEMORY;
+			goto out;
+		}
 		wait_for_completion(&completion);
 		if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
-			ret = fwControl->retcode;
-			break;
+			pm8001_ha->fw_status = fwControl->retcode;
+			ret = -EFAULT;
+			goto out;
+		}
 		}
 	}
-	if (ret)
-		break;
-	partitionNumber++;
-}
 out:
 	kfree(ioctlbuffer);
 	return ret;
@@ -643,22 +644,29 @@ static ssize_t pm8001_store_update_fw(struct device *cdev,
 	char *cmd_ptr, *filename_ptr;
 	int res, i;
 	int flash_command = FLASH_CMD_NONE;
-	int err = 0;
+	int ret;
+
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	cmd_ptr = kzalloc(count*2, GFP_KERNEL);
+	/* this test protects us from running two flash processes at once,
+	 * so we should start with this test */
+	if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
+		return -EINPROGRESS;
+	pm8001_ha->fw_status = FLASH_IN_PROGRESS;
 
+	cmd_ptr = kzalloc(count*2, GFP_KERNEL);
 	if (!cmd_ptr) {
-		err = FAIL_OUT_MEMORY;
-		goto out;
+		pm8001_ha->fw_status = FAIL_OUT_MEMORY;
+		return -ENOMEM;
 	}
 
 	filename_ptr = cmd_ptr + count;
 	res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
 	if (res != 2) {
-		err = FAIL_PARAMETERS;
-		goto out1;
+		pm8001_ha->fw_status = FAIL_PARAMETERS;
+		ret = -EINVAL;
+		goto out;
 	}
 
 	for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
@@ -669,50 +677,38 @@ static ssize_t pm8001_store_update_fw(struct device *cdev,
 		}
 	}
 	if (flash_command == FLASH_CMD_NONE) {
-		err = FAIL_PARAMETERS;
-		goto out1;
+		pm8001_ha->fw_status = FAIL_PARAMETERS;
+		ret = -EINVAL;
+		goto out;
 	}
 
-	if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) {
-		err = FLASH_IN_PROGRESS;
-		goto out1;
-	}
-	err = request_firmware(&pm8001_ha->fw_image,
+	ret = request_firmware(&pm8001_ha->fw_image,
 			       filename_ptr,
 			       pm8001_ha->dev);
 
-	if (err) {
+	if (ret) {
 		PM8001_FAIL_DBG(pm8001_ha,
-			pm8001_printk("Failed to load firmware image file %s,"
-			" error %d\n", filename_ptr, err));
-		err = FAIL_OPEN_BIOS_FILE;
-		goto out1;
+			pm8001_printk(
+			"Failed to load firmware image file %s,	error %d\n",
+			filename_ptr, ret));
+		pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
+		goto out;
 	}
 
-	switch (flash_command) {
-	case FLASH_CMD_UPDATE:
-		pm8001_ha->fw_status = FLASH_IN_PROGRESS;
-		err = pm8001_update_flash(pm8001_ha);
-		break;
-	case FLASH_CMD_SET_NVMD:
-		pm8001_ha->fw_status = FLASH_IN_PROGRESS;
-		err = pm8001_set_nvmd(pm8001_ha);
-		break;
-	default:
-		pm8001_ha->fw_status = FAIL_PARAMETERS;
-		err = FAIL_PARAMETERS;
-		break;
-	}
+	if (FLASH_CMD_UPDATE == flash_command)
+		ret = pm8001_update_flash(pm8001_ha);
+	else
+		ret = pm8001_set_nvmd(pm8001_ha);
+
 	release_firmware(pm8001_ha->fw_image);
-out1:
-	kfree(cmd_ptr);
 out:
-	pm8001_ha->fw_status = err;
+	kfree(cmd_ptr);
 
-	if (!err)
+	if (ret)
+		return ret;
+
+	pm8001_ha->fw_status = FLASH_OK;
 	return count;
-	else
-		return -err;
 }
 
 static ssize_t pm8001_show_update_fw(struct device *cdev,

drivers/scsi/pm8001/pm8001_hwi.c

@@ -4824,7 +4824,7 @@ int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
 	if (rc) {
 		kfree(fw_control_context);
-		return rc;
+		return -EBUSY;
 	}
 	ccb = &pm8001_ha->ccb_info[tag];
 	ccb->fw_control_context = fw_control_context;
@@ -4946,7 +4946,7 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
 	rc = pm8001_tag_alloc(pm8001_ha, &tag);
 	if (rc) {
 		kfree(fw_control_context);
-		return rc;
+		return -EBUSY;
 	}
 	ccb = &pm8001_ha->ccb_info[tag];
 	ccb->fw_control_context = fw_control_context;

drivers/scsi/pm8001/pm8001_init.c

@@ -748,15 +748,16 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 		sizeof(pm8001_ha->msix_entries[0]);
 	for (i = 0; i < max_entry ; i++)
 		pm8001_ha->msix_entries[i].entry = i;
-	rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries,
+	rc = pci_enable_msix_exact(pm8001_ha->pdev, pm8001_ha->msix_entries,
 		number_of_intr);
 	pm8001_ha->number_of_intr = number_of_intr;
-	if (!rc) {
+	if (rc)
+		return rc;
+
 	PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
-			"pci_enable_msix request ret:%d no of intr %d\n",
+		"pci_enable_msix_exact request ret:%d no of intr %d\n",
 				rc, pm8001_ha->number_of_intr));
 
-
 	for (i = 0; i < number_of_intr; i++) {
 		snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
 				DRV_NAME"%d", i);
@@ -767,15 +768,15 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 			pm8001_interrupt_handler_msix, flag,
 			intr_drvname[i], &(pm8001_ha->irq_vector[i]));
 		if (rc) {
-				for (j = 0; j < i; j++)
-					free_irq(
-					pm8001_ha->msix_entries[j].vector,
+			for (j = 0; j < i; j++) {
+				free_irq(pm8001_ha->msix_entries[j].vector,
 					&(pm8001_ha->irq_vector[i]));
+			}
 			pci_disable_msix(pm8001_ha->pdev);
 			break;
 		}
 	}
-	}
+
 	return rc;
 }
 #endif

drivers/scsi/qla4xxx/ql4_init.c

@@ -334,6 +334,12 @@ void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha)
 	/* Allocate memory for saving the template */
 	md_tmp = dma_alloc_coherent(&ha->pdev->dev, ha->fw_dump_tmplt_size,
 				    &md_tmp_dma, GFP_KERNEL);
+	if (!md_tmp) {
+		ql4_printk(KERN_INFO, ha,
+			   "scsi%ld: Failed to allocate DMA memory\n",
+			   ha->host_no);
+		return;
+	}
 
 	/* Request template */
 	status =  qla4xxx_get_minidump_template(ha, md_tmp_dma);

drivers/scsi/qla4xxx/ql4_mbx.c

@@ -1620,8 +1620,8 @@ int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
 		goto exit_get_chap;
 	}
 
-	strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
-	strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
+	strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
+	strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
 	chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
 
 exit_get_chap:
@@ -1663,8 +1663,8 @@ int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password,
 	else
 		chap_table->flags |= BIT_7; /* local */
 	chap_table->secret_len = strlen(password);
-	strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN);
-	strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN);
+	strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN - 1);
+	strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN - 1);
 	chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
 
 	if (is_qla40XX(ha)) {
@@ -1742,8 +1742,8 @@ int qla4xxx_get_uni_chap_at_index(struct scsi_qla_host *ha, char *username,
 		goto exit_unlock_uni_chap;
 	}
 
-	strncpy(password, chap_table->secret, MAX_CHAP_SECRET_LEN);
-	strncpy(username, chap_table->name, MAX_CHAP_NAME_LEN);
+	strlcpy(password, chap_table->secret, MAX_CHAP_SECRET_LEN);
+	strlcpy(username, chap_table->name, MAX_CHAP_NAME_LEN);
 
 	rval = QLA_SUCCESS;
 
@@ -2295,7 +2295,7 @@ int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param)
 	if (param == SET_DRVR_VERSION) {
 		mbox_cmd[1] = SET_DRVR_VERSION;
 		strncpy((char *)&mbox_cmd[2], QLA4XXX_DRIVER_VERSION,
-			MAX_DRVR_VER_LEN);
+			MAX_DRVR_VER_LEN - 1);
 	} else {
 		ql4_printk(KERN_ERR, ha, "%s: invalid parameter 0x%x\n",
 			   __func__, param);

drivers/scsi/qla4xxx/ql4_nx.c

@@ -4221,7 +4221,7 @@ qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
 	for (i = 0; i < QLA_MSIX_ENTRIES; i++)
 		entries[i].entry = qla4_8xxx_msix_entries[i].entry;
 
-	ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
+	ret = pci_enable_msix_exact(ha->pdev, entries, ARRAY_SIZE(entries));
 	if (ret) {
 		ql4_printk(KERN_WARNING, ha,
 		    "MSI-X: Failed to enable support -- %d/%d\n",

drivers/scsi/qla4xxx/ql4_os.c

@@ -756,9 +756,9 @@ static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
 			continue;
 
 		chap_rec->chap_tbl_idx = i;
-		strncpy(chap_rec->username, chap_table->name,
+		strlcpy(chap_rec->username, chap_table->name,
 			ISCSI_CHAP_AUTH_NAME_MAX_LEN);
-		strncpy(chap_rec->password, chap_table->secret,
+		strlcpy(chap_rec->password, chap_table->secret,
 			QL4_CHAP_MAX_SECRET_LEN);
 		chap_rec->password_length = chap_table->secret_len;
 
@@ -1050,6 +1050,7 @@ static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
 	if (!ql_iscsi_stats) {
 		ql4_printk(KERN_ERR, ha,
 			   "Unable to allocate memory for iscsi stats\n");
+		ret = -ENOMEM;
 		goto exit_host_stats;
 	}
 
@@ -1058,6 +1059,7 @@ static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len)
 	if (ret != QLA_SUCCESS) {
 		ql4_printk(KERN_ERR, ha,
 			   "Unable to retrieve iscsi stats\n");
+		ret = -EIO;
 		goto exit_host_stats;
 	}
 	host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames);
@@ -6027,8 +6029,8 @@ static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
 		if (!(chap_table->flags & BIT_6)) /* Not BIDI */
 			continue;
 
-		strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
-		strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
+		strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
+		strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
 		ret = 0;
 		break;
 	}
@@ -6258,8 +6260,8 @@ static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
 
 	tddb->tpgt = sess->tpgt;
 	tddb->port = conn->persistent_port;
-	strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
-	strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
+	strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
+	strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
 }
 
 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
@@ -7764,7 +7766,7 @@ static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess,
 		goto exit_ddb_logout;
 	}
 
-	strncpy(flash_tddb->iscsi_name, fnode_sess->targetname,
+	strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname,
 		ISCSI_NAME_SIZE);
 
 	if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4))

drivers/scsi/scsi_transport_iscsi.c

@@ -3429,7 +3429,7 @@ iscsi_get_host_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh)
 	char *buf;
 
 	if (!transport->get_host_stats)
-		return -EINVAL;
+		return -ENOSYS;
 
 	priv = iscsi_if_transport_lookup(transport);
 	if (!priv)
@@ -3467,6 +3467,10 @@ iscsi_get_host_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh)
 		memset(buf, 0, host_stats_size);
 
 		err = transport->get_host_stats(shost, buf, host_stats_size);
+		if (err) {
+			kfree_skb(skbhost_stats);
+			goto exit_host_stats;
+		}
 
 		actual_size = nlmsg_total_size(sizeof(*ev) + host_stats_size);
 		skb_trim(skbhost_stats, NLMSG_ALIGN(actual_size));

drivers/scsi/u14-34f.c

@@ -1006,7 +1006,7 @@ static int port_detect \
           sh[j]->irq, dma_name, sh[j]->sg_tablesize, sh[j]->can_queue);
 
    if (sh[j]->max_id > 8 || sh[j]->max_lun > 8)
-      printk("%s: wide SCSI support enabled, max_id %u, max_lun %u.\n",
+      printk("%s: wide SCSI support enabled, max_id %u, max_lun %llu.\n",
              BN(j), sh[j]->max_id, sh[j]->max_lun);
 
    for (i = 0; i <= sh[j]->max_channel; i++)
@@ -1285,7 +1285,7 @@ static int u14_34f_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct
    cpp->cpp_index = i;
    SCpnt->host_scribble = (unsigned char *) &cpp->cpp_index;
 
-   if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%llu.\n",
+   if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%u.\n",
                         BN(j), i, SCpnt->device->channel, SCpnt->device->id,
                         (u8)SCpnt->device->lun);
 

include/scsi/iscsi_if.h

@@ -527,6 +527,7 @@ enum iscsi_err {
 	ISCSI_ERR_XMIT_FAILED		= ISCSI_ERR_BASE + 19,
 	ISCSI_ERR_TCP_CONN_CLOSE	= ISCSI_ERR_BASE + 20,
 	ISCSI_ERR_SCSI_EH_SESSION_RST	= ISCSI_ERR_BASE + 21,
+	ISCSI_ERR_NOP_TIMEDOUT		= ISCSI_ERR_BASE + 22,
 };
 
 /*