[SCSI] fix duplicate removal on error path in scsi_sysfs_add_sdev

This patch (as1335) fixes a bug in scsi_sysfs_add_sdev().  Its callers
always remove the device if anything goes wrong, so it should never
remove the device.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Alan Stern 2010-02-12 12:13:55 -05:00 committed by James Bottomley
parent d5469119f0
commit ee37e09d81

View File

@ -878,7 +878,8 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
struct request_queue *rq = sdev->request_queue; struct request_queue *rq = sdev->request_queue;
struct scsi_target *starget = sdev->sdev_target; struct scsi_target *starget = sdev->sdev_target;
if ((error = scsi_device_set_state(sdev, SDEV_RUNNING)) != 0) error = scsi_device_set_state(sdev, SDEV_RUNNING);
if (error)
return error; return error;
error = scsi_target_add(starget); error = scsi_target_add(starget);
@ -889,13 +890,13 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
error = device_add(&sdev->sdev_gendev); error = device_add(&sdev->sdev_gendev);
if (error) { if (error) {
printk(KERN_INFO "error 1\n"); printk(KERN_INFO "error 1\n");
goto out_remove; return error;
} }
error = device_add(&sdev->sdev_dev); error = device_add(&sdev->sdev_dev);
if (error) { if (error) {
printk(KERN_INFO "error 2\n"); printk(KERN_INFO "error 2\n");
device_del(&sdev->sdev_gendev); device_del(&sdev->sdev_gendev);
goto out_remove; return error;
} }
transport_add_device(&sdev->sdev_gendev); transport_add_device(&sdev->sdev_gendev);
sdev->is_visible = 1; sdev->is_visible = 1;
@ -910,14 +911,14 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
else else
error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_depth); error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_depth);
if (error) if (error)
goto out_remove; return error;
if (sdev->host->hostt->change_queue_type) if (sdev->host->hostt->change_queue_type)
error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_type_rw); error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_type_rw);
else else
error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_type); error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_type);
if (error) if (error)
goto out_remove; return error;
error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL, NULL); error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL, NULL);
@ -933,16 +934,11 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
error = device_create_file(&sdev->sdev_gendev, error = device_create_file(&sdev->sdev_gendev,
sdev->host->hostt->sdev_attrs[i]); sdev->host->hostt->sdev_attrs[i]);
if (error) if (error)
goto out_remove;
}
}
return 0;
out_remove:
__scsi_remove_device(sdev);
return error; return error;
}
}
return error;
} }
void __scsi_remove_device(struct scsi_device *sdev) void __scsi_remove_device(struct scsi_device *sdev)