net: wan: replace comparison to NULL with "!card"

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

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c
index a5f0aae..5a89b6d 100644 (file)
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -600,7 +600,7 @@ static int wanxl_pci_init_one(struct pci_dev *pdev,
        }
 
        card = kzalloc(struct_size(card, ports, ports), GFP_KERNEL);
-       if (card == NULL) {
+       if (!card) {
                pci_release_regions(pdev);
                pci_disable_device(pdev);
                return -ENOBUFS;
@@ -612,7 +612,7 @@ static int wanxl_pci_init_one(struct pci_dev *pdev,
        card->status = dma_alloc_coherent(&pdev->dev,
                                          sizeof(struct card_status),
                                          &card->status_address, GFP_KERNEL);
-       if (card->status == NULL) {
+       if (!card->status) {
                wanxl_pci_remove_one(pdev);
                return -ENOBUFS;
        }