hpt366: MWDMA filter for SATA cards (take 2)

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

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 68ef1636678dfe21189a39ebb10accba5068e70e..96bc31266c98a258aefbcbd6ff54fde95f80a560 100644 (file)
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -220,7 +220,7 @@ 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;
 
@@ -263,6 +263,10 @@ static void scsi_host_dev_release(struct device *dev)
                kthread_stop(shost->ehandler);
        if (shost->work_q)
                destroy_workqueue(shost->work_q);
+       if (shost->uspace_req_q) {
+               kfree(shost->uspace_req_q->queuedata);
+               scsi_free_queue(shost->uspace_req_q);
+       }
 
        scsi_destroy_command_freelist(shost);
        if (shost->bqt)
@@ -301,8 +305,8 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
        if (!shost)
                return NULL;
 
-       spin_lock_init(&shost->default_lock);
-       scsi_assign_lock(shost, &shost->default_lock);
+       shost->host_lock = &shost->default_lock;
+       spin_lock_init(shost->host_lock);
        shost->shost_state = SHOST_CREATED;
        INIT_LIST_HEAD(&shost->__devices);
        INIT_LIST_HEAD(&shost->__targets);
@@ -431,7 +435,7 @@ struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
        struct class_device *cdev;
        struct Scsi_Host *shost = ERR_PTR(-ENXIO), *p;
 
-       down_read(&class->subsys.rwsem);
+       down(&class->sem);
        list_for_each_entry(cdev, &class->children, node) {
                p = class_to_shost(cdev);
                if (p->host_no == hostnum) {
@@ -439,7 +443,7 @@ struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
                        break;
                }
        }
-       up_read(&class->subsys.rwsem);
+       up(&class->sem);
 
        return shost;
 }