linux-kernel - [PATCH net-next 6/8] net: pc300too: replace comparison to NULL with "!card->plxbase"

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Message-ID: <1623382582-37854-7-git-send-email-huangguangbin2@huawei.com>
Date:   Fri, 11 Jun 2021 11:36:20 +0800
From:   Guangbin Huang <huangguangbin2@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>, <xie.he.0141@...il.com>,
        <ms@....tdt.de>, <willemb@...gle.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <lipeng321@...wei.com>, <huangguangbin2@...wei.com>
Subject: [PATCH net-next 6/8] net: pc300too: replace comparison to NULL with "!card->plxbase"

From: Peng Li <lipeng321@...wei.com>

According to the chackpatch.pl, comparison to NULL could
be written "!card->plxbase".

Signed-off-by: Peng Li <lipeng321@...wei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
---
 drivers/net/wan/pc300too.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c
index 56f7d96..ecce999 100644
--- a/drivers/net/wan/pc300too.c
+++ b/drivers/net/wan/pc300too.c
@@ -298,7 +298,7 @@ static int pc300_pci_init_one(struct pci_dev *pdev,
 	}
 
 	card = kzalloc(sizeof(card_t), GFP_KERNEL);
-	if (card == NULL) {
+	if (!card) {
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
 		return -ENOBUFS;
@@ -322,9 +322,7 @@ static int pc300_pci_init_one(struct pci_dev *pdev,
 	ramphys = pci_resource_start(pdev, 3) & PCI_BASE_ADDRESS_MEM_MASK;
 	card->rambase = pci_ioremap_bar(pdev, 3);
 
-	if (card->plxbase == NULL ||
-	    card->scabase == NULL ||
-	    card->rambase == NULL) {
+	if (!card->plxbase || !card->scabase || !card->rambase) {
 		pr_err("ioremap() failed\n");
 		pc300_pci_remove_one(pdev);
 		return -ENOMEM;
-- 
2.8.1