Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

[linux-2.6-omap-h63xx.git] / drivers / scsi / hosts.c

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index bd8e7f323c69fcd607ba6124f7a83339809a8abd..5ea1f986220cf052e2786d6f91a5d7e86aebcf39 100644 (file)
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -54,8 +54,7 @@ static struct class shost_class = {
 };
 
 /**
- *     scsi_host_set_state - Take the given host through the host
- *             state model.
+ *     scsi_host_set_state - Take the given host through the host state model.
  *     @shost: scsi host to change the state of.
  *     @state: state to change to.
  *
@@ -220,7 +219,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device *dev)
        get_device(&shost->shost_gendev);
 
        if (shost->transportt->host_size &&
-           (shost->shost_data = kmalloc(shost->transportt->host_size,
+           (shost->shost_data = kzalloc(shost->transportt->host_size,
                                         GFP_KERNEL)) == NULL)
                goto out_del_classdev;
 
@@ -342,6 +341,14 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
        shost->unchecked_isa_dma = sht->unchecked_isa_dma;
        shost->use_clustering = sht->use_clustering;
        shost->ordered_tag = sht->ordered_tag;
+       shost->active_mode = sht->supported_mode;
+       shost->use_sg_chaining = sht->use_sg_chaining;
+
+       if (sht->supported_mode == MODE_UNKNOWN)
+               /* means we didn't set it ... default to INITIATOR */
+               shost->active_mode = MODE_INITIATOR;
+       else
+               shost->active_mode = sht->supported_mode;
 
        if (sht->max_host_blocked)
                shost->max_host_blocked = sht->max_host_blocked;
@@ -421,9 +428,17 @@ void scsi_unregister(struct Scsi_Host *shost)
 }
 EXPORT_SYMBOL(scsi_unregister);
 
+static int __scsi_host_match(struct class_device *cdev, void *data)
+{
+       struct Scsi_Host *p;
+       unsigned short *hostnum = (unsigned short *)data;
+
+       p = class_to_shost(cdev);
+       return p->host_no == *hostnum;
+}
+
 /**
  * scsi_host_lookup - get a reference to a Scsi_Host by host no
- *
  * @hostnum:   host number to locate
  *
  * Return value:
@@ -431,19 +446,12 @@ EXPORT_SYMBOL(scsi_unregister);
  **/
 struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
 {
-       struct class *class = &shost_class;
        struct class_device *cdev;
-       struct Scsi_Host *shost = ERR_PTR(-ENXIO), *p;
+       struct Scsi_Host *shost = ERR_PTR(-ENXIO);
 
-       down(&class->sem);
-       list_for_each_entry(cdev, &class->children, node) {
-               p = class_to_shost(cdev);
-               if (p->host_no == hostnum) {
-                       shost = scsi_host_get(p);
-                       break;
-               }
-       }
-       up(&class->sem);
+       cdev = class_find_child(&shost_class, &hostnum, __scsi_host_match);
+       if (cdev)
+               shost = scsi_host_get(class_to_shost(cdev));
 
        return shost;
 }