linux-kernel - [PATCH] xen-netback: remove unecessary condition check before debugfs_remove

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Message-ID: <1536414822-32911-1-git-send-email-zhongjiang@huawei.com>
Date:   Sat, 8 Sep 2018 21:53:42 +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>,
        <linux-kernel@...r.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 <zhongjiang@...wei.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