Re: [PATCH] Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs

[Li Zefan]

Zdenek Kabelac wrote:
> Subject: [PATCH] Add missing blk_trace_remove_sysfs to be in pair with
> blk_trace_init_sysfs
> From: Zdenek Kabelac <zkabelac@xxxxxxxxxx>
> 
> Adds missing blk_trace_remove_sysfs() to be in pair with
> blk_trace_init_sysfs() introduced in commit
> 1d54ad6da9192fed5dd3b60224d9f2dfea0dcd82.
> 
> Problem was noticed via kmemleak backtrace when some sysfs entries
> were note properly destroyed during  device removal:
> 

Thanks for reporting and fixing this!

> @@ -465,6 +466,7 @@ void blk_unregister_queue(struct gendisk *disk)
> 
>  		kobject_uevent(&q->kobj, KOBJ_REMOVE);
>  		kobject_del(&q->kobj);
> +		blk_trace_remove_sysfs(disk_to_dev(disk));

This should be moved outside of 'if'.

>  		kobject_put(&disk_to_dev(disk)->kobj);
>  	}
>  }
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