> -----Original Message-----
> From: zhong jiang [mailto:zhongji...@huawei.com]
> Sent: 08 September 2018 14:54
> To: da...@davemloft.net; Paul Durrant <paul.durr...@citrix.com>; Wei Liu
> <wei.l...@citrix.com>
> Cc: xen-devel@lists.xenproject.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org
> Subject: [PATCH] xen-netback: remove unecessary condition check before
> debugfs_remove_recursive
>
> debugfs_remove_recursive has taken IS_ERR_OR_NULL into account. So just
> remove the condition check before debugfs_remove_recursive.
>
> Signed-off-by: zhong jiang <zhongji...@huawei.com>
Reviewed-by: Paul Durrant <paul.durr...@citrix.com>
> ---
> drivers/net/xen-netback/netback.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-
> netback/netback.c
> index 3621e05..80aae3a 100644
> --- a/drivers/net/xen-netback/netback.c
> +++ b/drivers/net/xen-netback/netback.c
> @@ -1660,8 +1660,7 @@ static int __init netback_init(void)
> static void __exit netback_fini(void)
> {
> #ifdef CONFIG_DEBUG_FS
> - if (!IS_ERR_OR_NULL(xen_netback_dbg_root))
> - debugfs_remove_recursive(xen_netback_dbg_root);
> + debugfs_remove_recursive(xen_netback_dbg_root);
> #endif /* CONFIG_DEBUG_FS */
> xenvif_xenbus_fini();
> }
> --
> 1.7.12.4
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