1 files changed, 42 insertions, 16 deletions

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index b332caddd5b3..c51b5769eac8 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -96,24 +96,40 @@ unsigned int scsi_logging_level;
 EXPORT_SYMBOL(scsi_logging_level);
 #endif
 
-const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE] = {
-        "Direct-Access    ",
-        "Sequential-Access",
+static const char *const scsi_device_types[] = {
+        "Direct access    ",
+        "Sequential access",
         "Printer          ",
         "Processor        ",
         "WORM             ",
-        "CD-ROM           ",
+        "CD/DVD           ",
         "Scanner          ",
-        "Optical Device   ",
-        "Medium Changer   ",
+        "Optical memory   ",
+        "Media changer    ",
         "Communications   ",
-        "Unknown          ",
-        "Unknown          ",
+        "ASC IT8          ",
+        "ASC IT8          ",
         "RAID             ",
         "Enclosure        ",
-        "Direct-Access-RBC",
+        "Direct access RBC",
+        "Optical card     ",
+        "Bridge controller",
+        "Object storage   ",
+        "Automation/Drive ",
 };
-EXPORT_SYMBOL(scsi_device_types);
+
+const char * scsi_device_type(unsigned type)
+{
+        if (type == 0x1e)
+                return "Well-known LUN   ";
+        if (type == 0x1f)
+                return "No Device        ";
+        if (type > ARRAY_SIZE(scsi_device_types))
+                return "Unknown          ";
+        return scsi_device_types[type];
+}
+
+EXPORT_SYMBOL(scsi_device_type);
 
 struct scsi_host_cmd_pool {
         kmem_cache_t    *slab;
@@ -835,14 +851,14 @@ EXPORT_SYMBOL(scsi_track_queue_full);
  */
 int scsi_device_get(struct scsi_device *sdev)
 {
-        if (sdev->sdev_state == SDEV_DEL || sdev->sdev_state == SDEV_CANCEL)
+        if (sdev->sdev_state == SDEV_DEL)
                 return -ENXIO;
         if (!get_device(&sdev->sdev_gendev))
                 return -ENXIO;
-        if (!try_module_get(sdev->host->hostt->module)) {
-                put_device(&sdev->sdev_gendev);
-                return -ENXIO;
-        }
+        /* We can fail this if we're doing SCSI operations
+         * from module exit (like cache flush) */
+        try_module_get(sdev->host->hostt->module);
+
         return 0;
 }
 EXPORT_SYMBOL(scsi_device_get);
@@ -857,7 +873,14 @@ EXPORT_SYMBOL(scsi_device_get);
  */
 void scsi_device_put(struct scsi_device *sdev)
 {
-        module_put(sdev->host->hostt->module);
+        struct module *module = sdev->host->hostt->module;
+
+#ifdef CONFIG_MODULE_UNLOAD
+        /* The module refcount will be zero if scsi_device_get()
+         * was called from a module removal routine */
+        if (module && module_refcount(module) != 0)
+                module_put(module);
+#endif
         put_device(&sdev->sdev_gendev);
 }
 EXPORT_SYMBOL(scsi_device_put);
@@ -1099,6 +1122,8 @@ static int __init init_scsi(void)
         for_each_possible_cpu(i)
                 INIT_LIST_HEAD(&per_cpu(scsi_done_q, i));
 
+        scsi_netlink_init();
+
         printk(KERN_NOTICE "SCSI subsystem initialized\n");
         return 0;
 
@@ -1119,6 +1144,7 @@ cleanup_queue:
 
 static void __exit exit_scsi(void)
 {
+        scsi_netlink_exit();
         scsi_sysfs_unregister();
         scsi_exit_sysctl();
         scsi_exit_hosts();