Re: [PATCH] uio_hv_generic: add missed sysfs_remove_bin_file

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On Thu, May 07, 2020 at 11:13:43PM +0800, Chuhong Yuan wrote:
> This driver calls sysfs_create_bin_file() in probe, but forgets to
> call sysfs_remove_bin_file() in remove.
> Add the missed call to fix it.
> 
> Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx>
> ---
>  drivers/uio/uio_hv_generic.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c
> index 3c5169eb23f5..4dae2320b103 100644
> --- a/drivers/uio/uio_hv_generic.c
> +++ b/drivers/uio/uio_hv_generic.c
> @@ -361,6 +361,7 @@ hv_uio_remove(struct hv_device *dev)
>  	if (!pdata)
>  		return 0;
>  
> +	sysfs_remove_bin_file(&dev->channel->kobj, &ring_buffer_bin_attr);
>  	uio_unregister_device(&pdata->info);
>  	hv_uio_cleanup(dev, pdata);
>  	hv_set_drvdata(dev, NULL);


I'll take this, but it's not always needed as all sysfs files are
removed from the device when it is removed from sysfs anyway.  So this
shouldn't be an issue in a real system.

thanks,

greg k-h



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