Merge upstream kernel changes into 'C/H/S support' branch of libata.

1 files changed, 20 insertions, 17 deletions

diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 68d151aaa47..e17b4d58a9f 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -97,11 +97,6 @@ MODULE_PARM_DESC(loglevel,
 		 "FC ERP QDIO CIO Config FSF SCSI Other, "
 		 "levels: 0=none 1=normal 2=devel 3=trace");
 
-#ifdef ZFCP_PRINT_FLAGS
-u32 flags_dump = 0;
-module_param(flags_dump, uint, 0);
-#endif
-
 /****************************************************************/
 /************** Functions without logging ***********************/
 /****************************************************************/
@@ -223,13 +218,20 @@ zfcp_in_els_dbf_event(struct zfcp_adapter *adapter, const char *text,
  * Parse "device=..." parameter string.
  */
 static int __init
-zfcp_device_setup(char *str)
+zfcp_device_setup(char *devstr)
 {
-	char *tmp;
+	char *tmp, *str;
+	size_t len;
 
-	if (!str)
+	if (!devstr)
 		return 0;
 
+	len = strlen(devstr) + 1;
+	str = (char *) kmalloc(len, GFP_KERNEL);
+	if (!str)
+		goto err_out;
+	memcpy(str, devstr, len);
+
 	tmp = strchr(str, ',');
 	if (!tmp)
 		goto err_out;
@@ -246,10 +248,12 @@ zfcp_device_setup(char *str)
 	zfcp_data.init_fcp_lun = simple_strtoull(tmp, &tmp, 0);
 	if (*tmp != '\0')
 		goto err_out;
+	kfree(str);
 	return 1;
 
  err_out:
 	ZFCP_LOG_NORMAL("Parse error for device parameter string %s\n", str);
+	kfree(str);
 	return 0;
 }
 
@@ -525,7 +529,7 @@ zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
 
  out:
 	if (fsf_req != NULL)
-		zfcp_fsf_req_cleanup(fsf_req);
+		zfcp_fsf_req_free(fsf_req);
 
 	if ((adapter != NULL) && (retval != -ENXIO))
 		zfcp_adapter_put(adapter);
@@ -1154,7 +1158,7 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 	INIT_LIST_HEAD(&adapter->port_remove_lh);
 
 	/* initialize list of fsf requests */
-	rwlock_init(&adapter->fsf_req_list_lock);
+	spin_lock_init(&adapter->fsf_req_list_lock);
 	INIT_LIST_HEAD(&adapter->fsf_req_list_head);
 
 	/* initialize abort lock */
@@ -1239,9 +1243,9 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
 	zfcp_sysfs_adapter_remove_files(&adapter->ccw_device->dev);
 	dev_set_drvdata(&adapter->ccw_device->dev, NULL);
 	/* sanity check: no pending FSF requests */
-	read_lock_irqsave(&adapter->fsf_req_list_lock, flags);
+	spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
 	retval = !list_empty(&adapter->fsf_req_list_head);
-	read_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
+	spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
 	if (retval) {
 		ZFCP_LOG_NORMAL("bug: adapter %s (%p) still in use, "
 				"%i requests outstanding\n",
@@ -1483,19 +1487,15 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
 		fcp_rscn_element++;
 		switch (fcp_rscn_element->addr_format) {
 		case ZFCP_PORT_ADDRESS:
-			ZFCP_LOG_FLAGS(1, "ZFCP_PORT_ADDRESS\n");
 			range_mask = ZFCP_PORTS_RANGE_PORT;
 			break;
 		case ZFCP_AREA_ADDRESS:
-			ZFCP_LOG_FLAGS(1, "ZFCP_AREA_ADDRESS\n");
 			range_mask = ZFCP_PORTS_RANGE_AREA;
 			break;
 		case ZFCP_DOMAIN_ADDRESS:
-			ZFCP_LOG_FLAGS(1, "ZFCP_DOMAIN_ADDRESS\n");
 			range_mask = ZFCP_PORTS_RANGE_DOMAIN;
 			break;
 		case ZFCP_FABRIC_ADDRESS:
-			ZFCP_LOG_FLAGS(1, "ZFCP_FABRIC_ADDRESS\n");
 			range_mask = ZFCP_PORTS_RANGE_FABRIC;
 			break;
 		default:
@@ -1762,7 +1762,10 @@ static void zfcp_ns_gid_pn_handler(unsigned long data)
 	ct_iu_req = zfcp_sg_to_address(ct->req);
 	ct_iu_resp = zfcp_sg_to_address(ct->resp);
 
-	if ((ct->status != 0) || zfcp_check_ct_response(&ct_iu_resp->header)) {
+	if (ct->status != 0)
+		goto failed;
+
+	if (zfcp_check_ct_response(&ct_iu_resp->header)) {
 		/* FIXME: do we need some specific erp entry points */
 		atomic_set_mask(ZFCP_STATUS_PORT_INVALID_WWPN, &port->status);
 		goto failed;