netdev - [PATCH net] igc: Fix passing 0 to ERR_PTR in igc_xdp_run

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Message-ID: <20241016105310.3500279-1-yuehaibing@huawei.com>
Date: Wed, 16 Oct 2024 18:53:10 +0800
From: Yue Haibing <yuehaibing@...wei.com>
To: <anthony.l.nguyen@...el.com>, <przemyslaw.kitszel@...el.com>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <ast@...nel.org>, <daniel@...earbox.net>,
	<hawk@...nel.org>, <john.fastabend@...il.com>, <vedang.patel@...el.com>,
	<andre.guedes@...el.com>, <maciej.fijalkowski@...el.com>,
	<jithu.joseph@...el.com>
CC: <intel-wired-lan@...ts.osuosl.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <bpf@...r.kernel.org>,
	<yuehaibing@...wei.com>
Subject: [PATCH net] igc: Fix passing 0 to ERR_PTR in igc_xdp_run_prog()

Return NULL instead of passing to ERR_PTR while res is IGC_XDP_PASS,
which is zero, this fix smatch warnings:
drivers/net/ethernet/intel/igc/igc_main.c:2533
 igc_xdp_run_prog() warn: passing zero to 'ERR_PTR'

Fixes: 26575105d6ed ("igc: Add initial XDP support")
Signed-off-by: Yue Haibing <yuehaibing@...wei.com>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 6e70bca15db1..c3d6e20c0be0 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -2530,7 +2530,7 @@ static struct sk_buff *igc_xdp_run_prog(struct igc_adapter *adapter,
 	res = __igc_xdp_run_prog(adapter, prog, xdp);
 
 out:
-	return ERR_PTR(-res);
+	return res ? ERR_PTR(-res) : NULL;
 }
 
 /* This function assumes __netif_tx_lock is held by the caller. */
-- 
2.34.1