netdev - [PATCH net-next] net: ethernet: mtk_eth_soc: add check for allocation failure

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Date:   Thu, 21 Apr 2022 18:49:02 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Felix Fietkau <nbd@....name>
Cc:     John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH net-next] net: ethernet: mtk_eth_soc: add check for
 allocation failure

Check if the kzalloc() failed.

Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/net/ethernet/mediatek/mtk_wed.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index f0eacf819cd9..a2793bbb8ce0 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -827,6 +827,8 @@ void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
 		goto unlock;
 
 	hw = kzalloc(sizeof(*hw), GFP_KERNEL);
+	if (!hw)
+		goto unlock;
 	hw->node = np;
 	hw->regs = regs;
 	hw->eth = eth;
-- 
2.20.1