linux-kernel - [PATCH 1/2] ethernet: declance: Use NULL to compare with pointer-typed value rather than 0

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Message-ID: <1534573773-17358-2-git-send-email-zhongjiang@huawei.com>
Date:   Sat, 18 Aug 2018 14:29:32 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <davem@...emloft.net>
CC:     <vz@...ia.com>, <slemieux.tyco@...il.com>, <keescook@...omium.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] ethernet: declance:  Use NULL to compare with pointer-typed value rather than 0

We should use NULL to compare with pointer-typed value rather than
0. The issue is detected with the help of Coccinelle.

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

diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c
index 116997a..c636f02 100644
--- a/drivers/net/ethernet/amd/declance.c
+++ b/drivers/net/ethernet/amd/declance.c
@@ -606,8 +606,7 @@ static int lance_rx(struct net_device *dev)
 		} else {
 			len = (*rds_ptr(rd, mblength, lp->type) & 0xfff) - 4;
 			skb = netdev_alloc_skb(dev, len + 2);
-
-			if (skb == 0) {
+			if (!skb) {
 				dev->stats.rx_dropped++;
 				*rds_ptr(rd, mblength, lp->type) = 0;
 				*rds_ptr(rd, rmd1, lp->type) =
-- 
1.7.12.4