linux-kernel - [PATCH net-next 2/2] net: marvell: prestera: Fix return value check in prestera_kern_fib_cache

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Date:   Wed, 23 Feb 2022 16:49:54 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     <kuba@...nel.org>, <davem@...emloft.net>, <tchornyi@...vell.com>,
        <yevhen.orlov@...ision.eu>
Subject: [PATCH net-next 2/2] net: marvell: prestera: Fix return value check in prestera_kern_fib_cache_find()

rhashtable_lookup_fast() returns NULL pointer not ERR_PTR(), so
it can return fib_node directly in prestera_kern_fib_cache_find().

Fixes: 4394fbcb78cf ("net: marvell: prestera: handle fib notifications")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/net/ethernet/marvell/prestera/prestera_router.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_router.c b/drivers/net/ethernet/marvell/prestera/prestera_router.c
index 54ebda61bfea..6c5618cf4f08 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_router.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_router.c
@@ -68,7 +68,7 @@ prestera_kern_fib_cache_find(struct prestera_switch *sw,
 	fib_cache =
 	 rhashtable_lookup_fast(&sw->router->kern_fib_cache_ht, key,
 				__prestera_kern_fib_cache_ht_params);
-	return IS_ERR(fib_cache) ? NULL : fib_cache;
+	return fib_cache;
 }
 
 static void
-- 
2.25.1