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>
---
 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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