netdev - [PATCH] net: xenbus: remove redundant condition check before debugfs_remove

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Message-ID: <1536413706-31838-1-git-send-email-zhongjiang@huawei.com>
Date:   Sat, 8 Sep 2018 21:35:06 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <davem@...emloft.net>, <paul.durrant@...rix.com>,
        <wei.liu2@...rix.com>
CC:     <xen-devel@...ts.xenproject.org>, <netdev@...r.kernel.org>
Subject: [PATCH] net: xenbus: remove redundant condition check before debugfs_remove_recursive

debugfs_remove_recursive has taken the IS_ERR_OR_NULL into account. Just
remove the unnecessary condition check.

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 drivers/net/xen-netback/xenbus.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index cd51492..fe1d522 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -254,8 +254,7 @@ static void xenvif_debugfs_delif(struct xenvif *vif)
 	if (IS_ERR_OR_NULL(xen_netback_dbg_root))
 		return;
 
-	if (!IS_ERR_OR_NULL(vif->xenvif_dbg_root))
-		debugfs_remove_recursive(vif->xenvif_dbg_root);
+	debugfs_remove_recursive(vif->xenvif_dbg_root);
 	vif->xenvif_dbg_root = NULL;
 }
 #endif /* CONFIG_DEBUG_FS */
-- 
1.7.12.4