netxen: fix tx ring memory leak

[safe/jmp/linux-2.6] / drivers / scsi / scsi_sysfs.c

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 5c7eb63..5a06505 100644 (file)
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -766,10 +766,13 @@ sdev_store_queue_depth_rw(struct device *dev, struct device_attribute *attr,
        if (depth < 1)
                return -EINVAL;
 
-       retval = sht->change_queue_depth(sdev, depth);
+       retval = sht->change_queue_depth(sdev, depth,
+                                        SCSI_QDEPTH_DEFAULT);
        if (retval < 0)
                return retval;
 
+       sdev->max_queue_depth = sdev->queue_depth;
+
        return count;
 }
 
@@ -778,6 +781,37 @@ static struct device_attribute sdev_attr_queue_depth_rw =
               sdev_store_queue_depth_rw);
 
 static ssize_t
+sdev_show_queue_ramp_up_period(struct device *dev,
+                              struct device_attribute *attr,
+                              char *buf)
+{
+       struct scsi_device *sdev;
+       sdev = to_scsi_device(dev);
+       return snprintf(buf, 20, "%u\n",
+                       jiffies_to_msecs(sdev->queue_ramp_up_period));
+}
+
+static ssize_t
+sdev_store_queue_ramp_up_period(struct device *dev,
+                               struct device_attribute *attr,
+                               const char *buf, size_t count)
+{
+       struct scsi_device *sdev = to_scsi_device(dev);
+       unsigned long period;
+
+       if (strict_strtoul(buf, 10, &period))
+               return -EINVAL;
+
+       sdev->queue_ramp_up_period = msecs_to_jiffies(period);
+       return period;
+}
+
+static struct device_attribute sdev_attr_queue_ramp_up_period =
+       __ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR,
+              sdev_show_queue_ramp_up_period,
+              sdev_store_queue_ramp_up_period);
+
+static ssize_t
 sdev_store_queue_type_rw(struct device *dev, struct device_attribute *attr,
                         const char *buf, size_t count)
 {
@@ -854,82 +888,77 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
        transport_configure_device(&starget->dev);
        error = device_add(&sdev->sdev_gendev);
        if (error) {
-               put_device(sdev->sdev_gendev.parent);
                printk(KERN_INFO "error 1\n");
-               return error;
+               goto out_remove;
        }
        error = device_add(&sdev->sdev_dev);
        if (error) {
                printk(KERN_INFO "error 2\n");
-               goto clean_device;
+               device_del(&sdev->sdev_gendev);
+               goto out_remove;
        }
+       transport_add_device(&sdev->sdev_gendev);
+       sdev->is_visible = 1;
 
        /* create queue files, which may be writable, depending on the host */
-       if (sdev->host->hostt->change_queue_depth)
-               error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_depth_rw);
+       if (sdev->host->hostt->change_queue_depth) {
+               error = device_create_file(&sdev->sdev_gendev,
+                                          &sdev_attr_queue_depth_rw);
+               error = device_create_file(&sdev->sdev_gendev,
+                                          &sdev_attr_queue_ramp_up_period);
+       }
        else
                error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_depth);
-       if (error) {
-               __scsi_remove_device(sdev);
-               goto out;
-       }
+       if (error)
+               goto out_remove;
+
        if (sdev->host->hostt->change_queue_type)
                error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_type_rw);
        else
                error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_type);
-       if (error) {
-               __scsi_remove_device(sdev);
-               goto out;
-       }
+       if (error)
+               goto out_remove;
 
        error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL, NULL);
 
        if (error)
+               /* we're treating error on bsg register as non-fatal,
+                * so pretend nothing went wrong */
                sdev_printk(KERN_INFO, sdev,
                            "Failed to register bsg queue, errno=%d\n", error);
 
-       /* we're treating error on bsg register as non-fatal, so pretend
-        * nothing went wrong */
-       error = 0;
-
        /* add additional host specific attributes */
        if (sdev->host->hostt->sdev_attrs) {
                for (i = 0; sdev->host->hostt->sdev_attrs[i]; i++) {
                        error = device_create_file(&sdev->sdev_gendev,
                                        sdev->host->hostt->sdev_attrs[i]);
-                       if (error) {
-                               __scsi_remove_device(sdev);
-                               goto out;
-                       }
+                       if (error)
+                               goto out_remove;
                }
        }
 
-       transport_add_device(&sdev->sdev_gendev);
- out:
-       return error;
-
- clean_device:
-       scsi_device_set_state(sdev, SDEV_CANCEL);
-
-       device_del(&sdev->sdev_gendev);
-       transport_destroy_device(&sdev->sdev_gendev);
-       put_device(&sdev->sdev_dev);
-       put_device(&sdev->sdev_gendev);
+       return 0;
 
+ out_remove:
+       __scsi_remove_device(sdev);
        return error;
+
 }
 
 void __scsi_remove_device(struct scsi_device *sdev)
 {
        struct device *dev = &sdev->sdev_gendev;
 
-       if (scsi_device_set_state(sdev, SDEV_CANCEL) != 0)
-               return;
+       if (sdev->is_visible) {
+               if (scsi_device_set_state(sdev, SDEV_CANCEL) != 0)
+                       return;
 
-       bsg_unregister_queue(sdev->request_queue);
-       device_unregister(&sdev->sdev_dev);
-       transport_remove_device(dev);
-       device_del(dev);
+               bsg_unregister_queue(sdev->request_queue);
+               device_unregister(&sdev->sdev_dev);
+               transport_remove_device(dev);
+               device_del(dev);
+       } else
+               put_device(&sdev->sdev_dev);
        scsi_device_set_state(sdev, SDEV_DEL);
        if (sdev->host->hostt->slave_destroy)
                sdev->host->hostt->slave_destroy(sdev);